Filament, cordage locking device
CA 2115643 C · Owner: Stenner, Richard H. · Inventors: Stenner, John Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cord lock device (40) of unitary construction has a body of resilient material and a slit (50) through the center thereof that defines two cord gripping surfaces (52a 52b). A cord or cords (30a, 30b) threaded through the slit (50) are securely engaged by a clamping effect at the slit (50) and surface friction between the cords (30a 30b) and the gripping surfaces (52a, 52b) of the slit (50). The clamping effect results from pressure being applied to the base of the cord lock device (40) by the article to which the cords (30a, 30b) are attached. One releases the cords (30a 30b) by squeezing with the fingers the exterior sides (72a 72b) of the, cord lock body, being perpendicular to the slit …
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 August 13, 1992 and granted February 18, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 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.