Patent Tools: Patent Term Calculator

Patent Term Calculator

Enter the key dates of a patent to calculate its pending term. The USPTO allows a term adjustment to
cover delays caused by office procedure before the patent is issued – click ? to find out more.

Earliest Effective Filing Date:		(MM/DD/YYYY)
Application Filing Date:		*(MM/DD/YYYY)
Issue Date:		*(MM/DD/YYYY)
Term Adjustment [?]:		(In days, or zero if none.)

*Mandatory Fields