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Your Canton Intellectual Property Attorney
Ideas, brands, and creative work are only as protected as the steps taken to secure them and the speed of the response when someone copies them. If your business or work is based in Canton, the federal and South Dakota rules on patents, trademarks, copyrights, and trade secrets are written down, and knowing them early helps. The sections that follow cover what patents, trademarks, copyrights, and trade secrets protect, the filing deadlines, registration, the federal courts for Lincoln County, South Dakota’s own trademark and trade secret rules, and what an infringement claim involves. An attorney who handles intellectual property matters can tell you which of these rules apply to your situation.
Intellectual Property Rules at a Glance
- Patent claims are filed in federal court only (28 U.S.C. 1338(a)), and the six-year damages limit in 35 U.S.C. 286 makes early action important.
- Trademark claims can go to federal or state court (28 U.S.C. 1338(a)), and South Dakota’s own registration is a separate filing with the South Dakota Secretary of State.
- Copyright lawsuits have a three-year clock from when the claim accrued (17 U.S.C. 507(b)), and a United States work must be registered before an infringement suit can be filed (17 U.S.C. 411(a)).
- South Dakota has its own trade secret statute, the Uniform Trade Secrets Act (SDCL 37-29-1 to 37-29-11), and the federal action in 18 U.S.C. 1836 sits alongside it.
- A federal case from Canton goes to the District of South Dakota (28 U.S.C. 122), which sits in Aberdeen, Sioux Falls, Pierre, Deadwood, and Rapid City.
Patents, Trademarks, Copyrights, and Trade Secrets Compared
Patents cover new and useful processes, machines, manufactures, and compositions of matter (35 U.S.C. 101). Protection lasts until 20 years after the date on which the application was filed in the United States (35 U.S.C. 154(a)(2)), so the filing date matters more than the date the patent issues.
Under 15 U.S.C. 1127, a trademark is any word, name, symbol, or device, or a combination, that identifies and distinguishes one person’s goods from another’s and indicates their source, and a service mark performs that function for services.
A copyright question begins with whether the work is an original work of authorship fixed in a tangible medium (17 U.S.C. 102(a)) and whether what was copied was expression rather than an idea, system, or method (17 U.S.C. 102(b)).
Unlike a patent, a trade secret is kept private. The federal definition requires reasonable secrecy measures and independent economic value from not being generally known or readily ascertainable through proper means (18 U.S.C. 1839(3)).
Filing Deadlines and Damages Limits
For copyright infringement, the statute sets three years from when the claim accrued (17 U.S.C. 507(b)), and registration or a refusal of registration must come before suit on a United States work (17 U.S.C. 411(a)).
Trade secret claims under federal law must be filed within three years of discovery, or of when reasonable diligence would have revealed the misappropriation, and continuing misappropriation is one claim (18 U.S.C. 1836(d)).
Six years is the number to know in patent cases: infringement more than six years before the complaint cannot be recovered on (35 U.S.C. 286).
State-law claims, such as a claim under the Uniform Trade Secrets Act (SDCL 37-29-1 to 37-29-11) or a state trademark claim, have their own rules on limitation periods and on when a claim begins to run. Those are set by South Dakota statutes and court decisions, so the dates should be checked by an attorney rather than assumed from the federal deadlines.
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What to Do Before a Dispute Starts
For a trademark, the owner of a mark used in commerce may request registration on the principal register by paying the prescribed fee and filing an application and a verified statement with the Patent and Trademark Office (15 U.S.C. 1051(a)(1)). A person with a bona fide intention to use a mark in commerce may also apply (15 U.S.C. 1051(b)(1)).
South Dakota also has its own trademark registration. A state filing is made with the South Dakota Secretary of State under SDCL chapter 37-6, is separate from the federal register, and does not replace a federal application.
A copyright owner cannot file an infringement action on a United States work before registration has been made (17 U.S.C. 411(a)), although a refusal of registration can also open the door to suit if the Register of Copyrights is notified and served with the complaint.
Inventors should keep the 20-year term measured from filing in mind (35 U.S.C. 154(a)(2)), and should confirm early with an attorney that the invention falls within 35 U.S.C. 101.
Federal and State Courts for Intellectual Property Claims
Patent, plant variety protection, and copyright claims belong exclusively in federal court: the district courts have original jurisdiction of any civil action arising under an Act of Congress relating to patents, plant variety protection, copyrights, and trademarks, and no state court may hear the patent, plant variety protection, and copyright claims (28 U.S.C. 1338(a)). Trademark claims may also be brought in state court.
There is only one federal district in South Dakota. The District of South Dakota hears federal cases from Lincoln County and holds court in Aberdeen, Sioux Falls, Pierre, Deadwood, and Rapid City (28 U.S.C. 122).
South Dakota Law Alongside Federal Law
Owners of confidential information in Canton can look to two sources: the Uniform Trade Secrets Act (SDCL 37-29-1 to 37-29-11) and the federal action in 18 U.S.C. 1836(b), which requires a connection to interstate or foreign commerce and has its own three-year deadline (18 U.S.C. 1836(d)).
A state trademark registration in South Dakota is a different filing from federal registration (15 U.S.C. 1051). It is made with the South Dakota Secretary of State under SDCL chapter 37-6.
Whether to plead federal claims, state claims, or both turns on the facts, and an initial conversation with an attorney is the way to sort that out.
Types of Intellectual Property Claims
Patent Disputes
Whether conduct is infringement is measured against 35 U.S.C. 271(a), which reaches anyone who, without authority, makes, uses, offers to sell, or sells a patented invention in the United States or imports it during the patent’s term.
A patent case is filed in federal district court (28 U.S.C. 1338(a)).
Confusing Similarity and Brand Protection
Infringement of a registered mark means using in commerce a reproduction, counterfeit, copy, or colorable imitation of the mark in connection with the sale, offering for sale, distribution, or advertising of goods or services where the use is likely to cause confusion, mistake, or deception (15 U.S.C. 1114(1)(a)).
A person who believes he or she is or is likely to be damaged can bring the civil action under 15 U.S.C. 1125(a)(1).
Copyright Claims
Creative disputes involve two threshold points: the work must be an original work of authorship fixed in a tangible medium (17 U.S.C. 102(a)), and the claim cannot rest on an idea or system (17 U.S.C. 102(b)).
Federal district courts have original jurisdiction over copyright claims (28 U.S.C. 1338(a)).
Confidential Information and Departing Employees
The Defend Trade Secrets Act lets the owner of a misappropriated trade secret sue when the secret relates to a product or service in interstate or foreign commerce (18 U.S.C. 1836(b)(1)). Whether the information qualifies depends on the definition in 18 U.S.C. 1839(3).
Documents showing who had access, and what confidentiality steps existed, are among the first things to preserve.
Damages, Injunctions, and Other Relief
Relief in a patent case can include damages of at least a reasonable royalty with interest and costs, and enhancement up to three times in the court’s discretion (35 U.S.C. 284), and an injunction on reasonable terms under the principles of equity (35 U.S.C. 283).
The trademark remedies are set out in 15 U.S.C. 1116(a), which gives courts the power to grant injunctions, and 15 U.S.C. 1117(a), which lets a plaintiff recover defendant’s profits, damages, and costs once a violation is established.
Under 17 U.S.C. 504, the choice is between actual damages with additional profits and statutory damages, which the court sets between $750 and $30,000 for any one work.
Registering early matters for remedies as well as for suing: statutory damages and attorney’s fees are barred for infringement that began before registration, except when a published work is registered within three months after first publication (17 U.S.C. 412).
The Defend Trade Secrets Act lists the remedies: an injunction, damages for actual loss and unjust enrichment (or a reasonable royalty), exemplary damages of not more than 2 times the damages for willful and malicious misappropriation, and attorney’s fees in the situations the statute names (18 U.S.C. 1836(b)(3)).
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What to Gather Before You Talk to an Attorney
Bring a simple chronology. When was the work created, when was it first shared or sold, and when did you first notice the copying or use? Many of the deadlines on this page run from those events.
Patent matters go faster with drawings, lab notes, patent or application numbers, and a list of who has seen the invention. Trademark matters go faster with the mark itself, samples of its use, and any registration documents.
For a copyright question, bring the work, dated drafts, any registration papers, and examples of the copying. For a trade secret question, bring a description of the information, who had access, and what confidentiality steps were in place, such as agreements and access controls.
Intellectual Property Matters in Canton and Lincoln County
Deadlines and definitions are the same across South Dakota, and the courthouse is not. A federal case from Canton is filed in the District of South Dakota, and getting the timeline for that court from an attorney who practices there is a sound first step.
Hurt in an accident rather than dealing with a patent, trademark, or copyright issue? Read our Canton personal injury page. Related city pages in this region: Harrisburg, Lennox, and Tea. For the full list of South Dakota communities we serve, see our South Dakota intellectual property page.
Frequently Asked Questions
What counts as patent infringement?
Without authority, making, using, offering to sell, or selling a patented invention in the United States, or importing one into the United States, during the term of the patent (35 U.S.C. 271(a)).
Does an unregistered brand have any protection?
Possibly. A civil action can be brought under 15 U.S.C. 1125(a)(1) by a person who believes he or she is or is likely to be damaged by a false designation of origin likely to cause confusion, and South Dakota law may offer additional protection.
What kinds of work does copyright cover?
Original works of authorship fixed in any tangible medium of expression (17 U.S.C. 102(a)), including literary, musical, dramatic, and pictorial works, motion pictures, sound recordings, and architectural works.
What do I have to show to protect a trade secret?
The two elements of the definition: that you took reasonable measures to keep the information secret, and that it has independent economic value from not being generally known or readily ascertainable (18 U.S.C. 1839(3)).
Which court handles patent and copyright cases from Canton?
Both belong exclusively in federal district court (28 U.S.C. 1338(a)), which for Canton means the District of South Dakota.
Can I register a trademark with the state of South Dakota?
Yes. A state registration is filed with the South Dakota Secretary of State under SDCL chapter 37-6, and it is a separate filing from the federal application.
When does the trade secret clock start?
From the date the misappropriation is discovered or, by reasonable diligence, should have been discovered (18 U.S.C. 1836(d)).
Can I protect software or written material?
Written material and other original expression fixed in a tangible medium can be protected by copyright (17 U.S.C. 102(a)), but not the underlying ideas, procedures, or methods of operation (17 U.S.C. 102(b)).
Connect With a Canton Intellectual Property Attorney
Questions about a patent, a trademark filing, a copyright registration, or a trade secret are exactly what an initial conversation is for. Use the form to get matched with an attorney who can answer them for your case.
