A Google search says that: "US patents with a filing date before June 8, 1995 provide protection for up to seventeen years counting from the date of grant (the date given with reference numeral 45), or 20 years from the filing date, whichever expires later. However, the patent holder is required to pay maintenance fees to keep his patent valid." On Tue, Aug 2, 2016 at 11:05 PM, Max Clark <max.clark@gmail.com> wrote:
Hi all,
So I fell down the Google rabbit hole this weekend - the subject of my curiosity: US Patent No. 5,920,8531
This patent has a priority/filing date of August 23, 1996, which would imply that the g729 is in the open next month. Is this accurate? Am I missing another patent that keeps this behind the commercial pay wall?
I'm asking b/c I'd obviously rather not license channels and find out it was unnecessary a month later.
Max