Beds
CA 2055671 C · Owner: Huntleigh Technology Plc · Inventors: Hayes, Stephen; Jones, Robert Hugh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bed - Figure 1 - comprises a profiling mattress frame. Backrest 42 is arranged to be lifted by actuator 58 via a crank 56, and thighrest 46 similarly by actuator 60. Legrest 48 is freely pivoted to the thighrest. The angles of the parts are sensed and maintained in proportion by control means, so that as if for example the backrest angle 42 is steepened, the thighrest 46 is also raised in proportion but to less extent taking the, legrest 48 with it.
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 15, 1991 and granted January 23, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 15, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 2013.
- 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.