Sole of a sports shoe
CA 1079063 A · Owner: Karhu-Titan Oy · Inventors: Saaristo, Seppo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shoe has an insole an outsole, and a midsole, situated between the insole and outsole with a wedge member, being situated between the midsole and outsole at a heel region thereof and extending from the heel region toward an arch region thereof. This wedge member is formed with at least one opening situated at the heel region and extending downwardly from the midsole toward the outsole with the midsole and insole both having sufficient flexibility to extend at least partly into said opening in response to receiving the weight of the wearer of the shoe, so that the shoe can adapt itself to the shape of the foot of the wearer and contribute toward uniform support for the foot.
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
- Granted June 10, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 10, 1997.
- 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.