Footwear lacing system
CA 2045887 C · Owner: Klausner, Fred Phillip · Inventors: Klausner, Fred Phillip
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved lacing system for footwear which features a novel flat or rectangular cross section lace an improved, eyelet construction having an essentially straight lace bearing edge which ensures threading of the lace in a flatwise or untwisted manner, a parallel slot frictional engagement means for releasably securing the lace at the toe portion of the footwear and a releasable means for securing the lace at the ankle portion of the footwear.
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 June 22, 1990 and granted December 3, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 22, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 22, 2012.
- 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.