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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 ...
In the United States, for utility patents filed on or after June 8, 1995, the term of the patent is 20 years from the earliest filing date of the application on which the patent was granted and any prior U.S. or Patent Cooperation Treaty (PCT) applications from which the patent claims priority (excluding provisional applications). For patents ...
Patent Application Information Retrieval (PAIR) is an online service provided by the United States Patent and Trademark Office to allow users to see the prosecution histories of United States patents and patent applications and obtain copies of documents filed therein. There are two services: Public PAIR, which allows the general public to ...
(d) - data for 1836 include 599 patents issued prior to July 4, the effective date of the 1836 patent law (e) - "Patents", as used in this column, refers to "patents for inventions", also known as "utility" patents Data Sources (a) - recent statistics are obtained from the report, U.S. Patent Statistics Report, U.S. Patent and Trademark Office ...
The 100 known most prolific inventors based on worldwide utility patents are shown in the following table. While in many cases this is the number of utility patents granted by the United States Patent and Trademark Office, it may include utility patents granted by other countries, as noted by the source references for an inventor.
For patents filed on or after June 8, 1995, under the TRIPS agreement, continuation patents expire 20 years from the date of filing of the parent patent application, regardless of when the patent is granted. Thus, Lemelson's "submarine patents" strategy of taking steps that would delay the patent grant date will no longer extend the patent ...
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. However, patent term adjustment or extension are possible if the USPTO fails to issue a patent within 3 years after filing the full application ...
All users could file new applications for accelerated examination, design patents, design patent reissues, international applications for filing in the US receiving office, provisional applications, reexamination requests, utility patents under 35 U.S.C. § 111(a), utility patent reissues, U.S. National Stage applications under 35 U.S.C. § 371 ...