Bathtub lifting apparatus
CA 2116930 A1 · Owner: Schmidt, Peter · Inventors: Schmidt, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The lift platform (16) of a lifting apparatus (10) can be raised and lowered by means of an hydraulically operated lifting device (12). The back rest (18) can be swivelled backwards and forwards by a swivelling means (19). A multi-valve housing (20) is connected via pressure lines (24, 26) to the lifting and swivelling devices (12, 19). A hydraulic water supply line (22) feeds hydraulic water to the multi-valve housing (20). The multi-valve housing (20) contains main valves for filling or emptying the lifting and swivelling devices (12 19). The multi-valve housing (20) is triggered by an external manual control unit (30) via a flexible multiple line (28).
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 March 3, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 3, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 3, 2016.
- 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.