Foot prosthesis
CA 2127691 A1 · Owner: Composites-Busch & Cie · Inventors: Lallemand, Alain
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A foot prosthesis comprising a front plate (1) and a heel (2). The heel (2) is C-shaped with the opening (5) of the C facing the back of the prosthesis. The front plate has a stretched S shape and comprises a forward portion (10), a rear portion (11) and a middle portion (13) where the curvature changes direction. The front plate and the heel each comprise a plurality of layers of carbon, glass or aramide fibres. The fibre layers of the front plate and those of the heel are respectively coated with one or more layers of woven material then impregnated and shaped.
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 5, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 5, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 5, 2015.
- 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.