Exercise shoe sole
CA 2136595 A1 · Owner: Park, Youngsoul · Inventors: Park, Youngsoul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shoe sole (1) structure for effecting an increased exercise to the wearer of a shoe with the shoe sole as well as the high shock-absorbency. The shoe sole (1) of the present invention co prises a rear sole section (2) forming a recess heel, a forward sole section (3) forming the grounding bottom of the shoe sole (1), and an intermediate sole section (4) between the forward and rear sole sections (3 and 2). In the intermedinate sole section (4) wedge-shaped cushion member (5) is inserted to give the increased shock-absorbency and the constant coziness to the associated shoes while stimulating the arches of the wearer's foot with acupuncturing pressures. A return panel support (6) is buried …
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 November 24, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 24, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 24, 2016.
- 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.