Custom adjustable mattress support
CA 1282876 C · Owner: Pettifer, Richard T. · Inventors: Pettifer, Richard T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is directed to a novel inflatable adjustable mattress support and leveller. More particularly, this invention is directed to a mattress support and leveller which can be selectively inflated in specific discrete areas to provide enhanced support in corresponding areas of a mattress which overlays the mattress support. A multiple chambered pneumatically inflatable bladder for use as a mattress support comprising: (a) a first individual discrete pneumatically inflatable chamber; (b) a second individual discrete pneumatically inflatable chamber; (c) a third individual discrete pneumatically inflatable chamber; and (d) separate inflation valve means for each chamber said …
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
- Granted April 9, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 9, 2008.
- 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.