Expired Canadian patentCanada
System for restoring the transmission quality in a link including amplifiers in cases of failure in one or several amplifiers
CA 2118974 C · Owner: Pamart, Jean-Luc · Inventors: Morin, Stephane; Ollivier, Francois-Xavier; Pamart, Jean-Luc
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordRead 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 March 14, 1994 and granted June 17, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 14, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 14, 1994
GrantedJune 17, 1997
Term endedMarch 14, 2014
Patent numberCA 2118974 C
Classification (IPC)H04L1/20 +1 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.