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Patent Expiration Rules (view source)
Revision as of 14:28, 18 September 2017
, 14:28, 18 September 2017→Updating the Patent Term Calculcations
== Updating the Patent Term Calculcations ==
We need to take into account the change in patent term. See https://en.wikipedia.org/wiki/Term_of_patent_in_the_United_States
*Patent filed after June 8 1995: term of 20 years from US filing date (based on fees paid)
*Pending on June 8 1995 or issued after June 7 1978 but not expired before june 8 19985 have the term max(17 years from issue date, 20 years from date of filing)
*Patents issued before June 7 1978 have term of 17 years from date of issue
*Maintenance Fees at 3.5, 7.5, and 11.5 years from date of issue. aka 4, 8 , 12
