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2. United States patent law - Wikipedia

   en.wikipedia.org/wiki/United_States_patent_law

   Patent applications can be filed at the United States Patent and Trademark Office (USPTO). Prior to June 7, 1995, the duration of a US utility patent was 17 years from patent issuance. Since that date, the duration of the US utility patent is 20 years from the earliest effective filing date.

3. Patentable subject matter in the United States - Wikipedia

   en.wikipedia.org/wiki/Patentable_subject_matter...

   In October 2005, the United States Patent and Trademark Office (USPTO) issued interim guidelines [32] for patent examiners to determine if a given claimed invention meets the statutory requirements of being a useful process, manufacture, composition of matter or machine (35 U.S.C. § 101). These guidelines assert that a process, including a ...

4. Title 35 of the United States Code - Wikipedia

   en.wikipedia.org/wiki/Title_35_of_the_United...

   Title 35 of the United States Code is a title of United States Code regarding patent law. The sections of Title 35 govern all aspects of patent law in the United States. There are currently 37 chapters, which include 376 sections (149 of which are used), in Title 35.

5. 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 ...

6. First to file and first to invent - Wikipedia

   en.wikipedia.org/wiki/First_to_file_and_first_to...

   First to file and first to invent are legal concepts that define who has the right to the grant of a patent for an invention.Since March 16, 2013, after the United States abandoned its "first to invent/document" system, all countries have operated under the "first-to-file" patent priority requirement.

7. Patentability - Wikipedia

   en.wikipedia.org/wiki/Patentability

   Many national and regional patent offices provide procedures for reconsidering whether or not a given patent is valid after grant. Under the European Patent Convention, any person can file an opposition provided they act promptly after the patent is granted. In the United States, members of the public can initiate reexamination proceedings ...