Knee supporting crutch attachment
CA 2003622 A1 · Owner: Beatty, Robert · Inventors: Beatty, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An attachment for existing crutches includes a foldable mechanism having a knee supporting platform and which is shiftable from a horizontal use position on the inside of a, crutch, to a vertical stowed position. Provision is included for vertical adjustment of the platform whereby a user may easily select either mode of the device when transitioning from a walking to a standing, at-rest position. Alternate knee supporting platform structure is proposed to accommodate the, desires of the user.
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 22, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 22, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 22, 2011.
- 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.