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→Updating the Patent Term Calculcations
== Updating the Patent Term Calculcations ==
*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
So patent filed after june 8 1995
:add 4 years (1460 days) to issue date to start
:add 4 years to issue date after 3.5yr fee
:add 4 years to issue date after 7.5 year fee
:add difference up to 20 years from filing date after 11.5 year fee
*Patent issued between june 7 1978 and june 8 1995 will have the term which max(file date + 20 years, issue date + 17 years)
::for those patents using 20 years + file date, same as after june 8 1995
::for those using 17 years + issue date
:::add 4 years to issue date to start
:::add 4 years to issue date after 3.5yr fee
:::add 4 years to issue date after 7.5yr fee
:::add 5 years to issue date after 11.5 yr fee
*Use same method as above for patents issued before June 7 1978
*For patents filed after May 28,2000
::if issue date more than 3 years after file date, then term of patent extended by number of days exceeding 3 years
Use the new fee data for this
