Therapeutic turning bed
CA 2057000 C · Owner: Boughton, Rutland Sherman · Inventors: Boughton, Rutland Sherman; Hunt, Kenneth William; Heaton, Keith Patrick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a therapeutic bed which comprises: (a) a trolley frame (1) having floor-engaging feet or wheels (2), (b) an attitude frame (3) pivotably mounted on the trolley frame (1) so as to be pivotable through a predetermined arc about an axis extending longitudinally of the bed (c) operating means (62, 67 , and 64) for causing the attitude frame (3) to pivot in one direction and then the other through said predetermined arc (d) a , plurality of air sacs (14) supported on said attitude frame (3) and inflatable to a pressure sufficient to provide a resilient surface for supporting a patient thereon said air sacs (14), together forming a shaped cavity (31 32, 33) …
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 May 29, 1990 and granted May 2, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 29, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 29, 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.