Sports shoe incorporating an elastic insert in the heel
CA 2016672 C · Owner: Frachey, Enrico · Inventors: Frachey, Enrico; Crespan, Alfredo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sports shoe having a vamp and a lower support part which includes a sole, and a wedge arranged on the sole a, mounting insole and an additional insole which is in contact with the user's foot. The shoe includes associated with the lower support part an insert, comprising elements which are elastically deformable under pressure and which are enclosed in an airtight casing advantageously of a plastic material, the insert being arranged in a seat provided in the wedge and in the mounting insole in a position corresponding with the heel of the foot. A further insert may be provided at a different location of the shoe. The elastically deformable elements are barrel shaped. This shape allows …
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 May 14, 1990 and granted March 18, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 14, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 14, 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.