A visit from the trolls
Posted Oct 15, 2007 17:28 UTC (Mon) by JoeBuck
In reply to: A visit from the trolls
Parent article: A visit from the trolls
According to freepatentsonline.com, US patents filed before June 1995 expire either 20 years from date of filing, or 17 years from date of issue, whichever is later. So the 5,072,412 expires in December 2008.
After June 1995, US patents expire 20 years from date of filing, period.
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