Sporting and exercising unit
CA 2024402 A1 · Owner: Lekhtman, David · Inventors: Lekhtman, David; Lekhtman, Gregory
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A foot receiving member has a spring member detachably attached to the bottom surface thereof. The spring member includes a top, arched, layer and a bottom arched, layer and a strap disposed between the two arched layers. The arched layers are attached at their ends, to a, corresponding end of the strap in such a manner that the spring member will be automatically disassembled under the influence of an extraordinary lateral force.
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 31, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 31, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 31, 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.