Electric drive attachment for wheelchairs
CA 2024873 A1 · Owner: Tzora Furniture Industries Ltd. · Inventors: Mastov, Eduard; Levy, Moshe; Mautner, Yehezkel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electric drive attachment for a wheelchair. The drive includes an electric motor constituting the input member of the drive a wheel adapted to touch the ground and to drive the wheelchair by frictional contact with the ground, and the wheel constituting the output member of the drive. The input member and the output member constitute an integral unit carried by a sleeve-like member slidably mounted on a first portion of a mounting member attachable to the wheelchair, and first means are provided to allow the unit to be shifted to, and arrested at, at least two different positions along the first portion of the mounting member. In the first position the unit is closer to a reference point …
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 7, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 7, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 7, 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.