Expired Canadian patentCanada
Retaining mechanism for securing a lamp base within a socket
CA 2079121 C · Owner: Ford Motor Company · Inventors: Witek, Roman John Jr.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved retaining mechanism for a lamp socket employs a retaining spring with a torsion relief coil to prevent permanent deformation during the assembly 5 of the spring to the socket.
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 September 25, 1992 and granted May 26, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 25, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 25, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 25, 1992
GrantedMay 26, 1998
Term endedSeptember 25, 2012
Patent numberCA 2079121 C
Classification (IPC)F21V19/00 +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.