Trademark FAQs - related questions & answers

Question: What is a PTDL (Patent and Trademark Depository Library)?

Answer:
A Patent and Trademark Depository Library (PTDL) is a library which is designated by the U.S. Patent and Trademark Office (USPTO) to receive and house copies of US patents and patent and trademark materials.

Question: Is a federal registration valid outside the United States?

Answer:
No. However, if you are a qualified owner of a trademark application pending before the USPTO, or of a registration issued by the USPTO, you may seek registration in any of the countries that have joined the Madrid Protocol.

Question: Do I have to register my trademark?

Answer:
No, but federal registration has several advantages, including notice to the public of the registrant's claim of ownership of the mark, a legal presumption of ownership nationwide, and the exclusive right to use.
 

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