Expired Canadian patentCanada
Composite core fastener
CA 1287759 C · Owner: Kaynar Technologies Inc. · Inventors: Berecz, Imre
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fastener comprises composite head and shank portions having an encapsulating metal sheath thereon that is electrically isolated from conductive fibers in the head and shank portions and from an exposed surface of the head portion.
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
- Granted August 20, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 20, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 7, 1987
GrantedAugust 20, 1991
Term endedAugust 20, 2008
Patent numberCA 1287759 C
Classification (IPC)F16B35/00 +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.