Jewelry clasp
CA 1300902 C · Owner: Napier Co. (The) · Inventors: Ziemelis, Herbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A jewelry clasp having a base and a cover mounted on the base for swinging movement and featuring a pair of elongated resilient S-shaped friction tongs on the base for snap-locking engagement within elongated grooves of a pair of complementary resilient friction flanges on the cover for releasably securing the base and its cover in locked position.
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 May 19, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.