A sports footwear structure particularly for in-line roller skates
CA 2215638 A1 · Owner: Callegari, Mario · Inventors: Annovi, Giuseppe; Callegari, Mario
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The sports footwear described comprises a first and a second footwear element (4, 5) such as an outer upper portion and an inner shoe, one of the elements having on the, corresponding surface facing the other element at least one, localized projection (22-27) which can be housed substantially with shape coupling in a recess (12-17) localized in a corresponding position in the other element so that the elements are connected to one another by the coupling of each projection in the corresponding recess.
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 September 10, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 10, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 2019.
- 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.