re:Patent pending....
Posted by
ballendo@y...
on 2001-01-25 19:05:11 UTC
Mark,
When did this change take place. There's a certain May, '83 patent
I'd like to know the status of... ;-)
More directly, How does one determine if the protection of a certain
patent has expired?
Thank you in advance.
Ballendo
When did this change take place. There's a certain May, '83 patent
I'd like to know the status of... ;-)
More directly, How does one determine if the protection of a certain
patent has expired?
Thank you in advance.
Ballendo
>In order to keep some control on abuses of the patent system (there
>are many that are much worse than sitting on a "pending"....), the
>USPTO made the life of a patent 20 years from the date of
>application, as opposed to 17 years from grant.