Exercise boot
CA 2207199 A1 · Owner: Lekhtman, David · Inventors: Lekhtman, David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An exercise boot comprises a foot receiving member and a spring member positioned under the foot receiving member. The foot receiving member is formed of a unitary flexible piece of material which has integrally joined left and right symmetrical portions and which has been brought together. The spring member comprises identical top and bottom arcuate layers connected in an opposed relationship by a resilient strap and each defining a central slot. The symmetrical portions are provided with base portions which form a sole in the foot receiving member for supporting a wearer's foot and provided with hooks for engaging the slot of the top arcuate layer and thus secure the foot receiving member …
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 5, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 5, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 5, 2019.
- 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.