Shoe sole structure
CA 2426696 A1 · Owner: Wang, Swei Mu · Inventors: Wang, Swei Mu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shoe sole structure that not only provides a shock absorbing effect but also can, protect the elastic portion of the shoe sole structure from aging and wear. The shoe, sole structure contains a first protective container a first elastic pad, a , second, protective container and a second protective container. The first protective container, has a first side having a first containing space and a second side having plural first, gutters thereon. The first elastic pad is united with the first side within the first, containing space. The second protective container has a third side having a second, containing space and a fourth side having plural second gutters thereon. The second, …
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 April 24, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 24, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 24, 2025.
- 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.