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The term of a patent is the maximum time during which it can be maintained in force. It is usually expressed in a number of years either starting from the filing date of the patent application or from the date of grant of the patent. In most patent laws, annuities or maintenance fees have to be regularly paid in order to keep the patent in ...
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 ...
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 ...
Thus, Lemelson's "submarine patents" strategy of taking steps that would delay the patent grant date will no longer extend the patent expiration date.) To minimize this alleged abuse of the patent system, the USPTO proposed several changes to the rules as to the number of continuations an applicant can file.
During patent prosecution, the disclosed utility is presumed valid. The patent office bears the burden to disprove utility. The standard the USPTO uses is whether it is more likely than not that it would lack utility from the perspective of a person having ordinary skill in the art. If the examiner shows evidence that the invention is not ...
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 ...
A provisional application is a patent application filed at the intellectual property offices of some countries. It does not mature into an issued patent and is deemed abandoned one year after its filing. It is used to secure a filing date for a subsequent non-provisional patent application claiming priority of the provisional 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 ...
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related to: utility patent expiration date lookup by name