Expired Canadian patentCanada
Switch interconnect for position encoder system
CA 2088092 C · Owner: Jondrow, Timothy J. · Inventors: Puckette, Robert B. E.; Jondrow, Timothy J.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Information representing the state of switches (84) carried on a pointing device handle (30) is carried to an associated computer (32) via a capacitive coupling technique.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed January 26, 1993 and granted May 29, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 26, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 26, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 26, 1993
GrantedMay 29, 2001
Term endedJanuary 26, 2013
Patent numberCA 2088092 C
Classification (IPC)G06F3/03 +2 more
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.