Triple lock handcuff with cushion grip
CA 2069472 C · Owner: Corcoran, Dan E. · Inventors: Corcoran, Dan E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A triple-lock handcuff of the type having a blade pivotally joined to spaced-apart cheek plates for movement through a locking channel includes several improvements. The lock assembly includes first and second pawl members resiliently urged toward the channel independently of one another by separate springs. A key operated extractor block carries a yoke for moving both pawl members simultaneously away from the channel to open the handcuff. The first and second pawl members are spaced-apart within the locking channel. An elongate resilient cushion is arranged along the inner edge of the blade so as to assume a first unloaded profile capable of passing between the cheek plates and, …
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 May 22, 1992 and granted October 30, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 22, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 22, 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.
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.