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  2. United States trademark law - Wikipedia

    en.wikipedia.org/wiki/United_States_trademark_law

    In contrast to copyright or patent law, trademark protection does not have a set duration or definite expiration date. Trademark rights only expire when the owner stops using the mark in commerce. However, federal trademark registrations expire ten years after the registration date, unless renewed within one year prior to the expiration.

  3. Term of patent in the United States - Wikipedia

    en.wikipedia.org/wiki/Term_of_patent_in_the...

    The original patent term under the 1790 Patent Act was decided individually for each patent, but "not exceeding fourteen years". The 1836 Patent Act (5 Stat. 117, 119, 5) provided (in addition to the fourteen-year term) an extension "for the term of seven years from and after the expiration of the first term" in certain circumstances, when the inventor hasn't got "a reasonable remuneration for ...

  4. Public domain - Wikipedia

    en.wikipedia.org/wiki/Public_domain

    A trademark registration may remain in force indefinitely, or expire without specific regard to its age. For a trademark registration to remain valid, the owner must continue to use it. In some circumstances, such as disuse, failure to assert trademark rights, or common usage by the public without regard for its intended use, it could become ...

  5. Design patent - Wikipedia

    en.wikipedia.org/wiki/Design_patent

    The trademarks can last indefinitely as long as they are used in commerce. ... was covered by a now expired design patent, U.S. patent D48,160, ...

  6. List of generic and genericized trademarks - Wikipedia

    en.wikipedia.org/wiki/List_of_generic_and...

    Westinghouse trademark, registered in the U.S. in the 1940s (automatic washing machine) and 1950s (coin laundry) but now expired. Linoleum Floor covering, [22] originally coined by Frederick Walton in 1864, and ruled as generic following a lawsuit for trademark infringement in 1878; probably the first product name to become a generic term. [23 ...

  7. Public domain in the United States - Wikipedia

    en.wikipedia.org/wiki/Public_domain_in_the...

    For example, all intellectual property rights relating to the sheet music and lyrics to Rhapsody in Blue expired in 2020, when all written works published in 1924 entered the public domain. The recording itself, however, is protected until January 1, 2025.

  8. Does sunscreen expire? Should you wear it indoors ... - AOL

    www.aol.com/lifestyle/does-sunscreen-expire-wear...

    How long does sunscreen protection last? In general, sunscreen lasts about two hours. If you’re staying cool and dry indoors and aren’t near any windows, you can stretch that to four to six ...

  9. Term of patent - Wikipedia

    en.wikipedia.org/wiki/Term_of_patent

    Consequently, in most patent laws nowadays, the term of patent is 20 years from the filing date of the application. This however does not forbid the states party to the WTO from providing, in their national law, other type of patent-like rights with shorter terms. Utility models are an example of such rights. Their term is usually 6 or 10 years.

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