Mattress for adjustable bed
CA 2500186 C · Owner: Dreamwell, Ltd. · Inventors: Gladney, Richard F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Mattresses that have a point of attachment to an adjustable bed frame that provides a pivot point about which the mattress can pivot when rising to an inclined position. In one embodiment the mattress has a pivoting member extending transversely through the mattress and provides a pivot point about which one portion of the mattress can pivot in relation to another of the mattress. By placing the member about midway through the mattress one half of , the mattress can pivot relative to the other half of the mattress. While the center point of the mattress is held in place. By pinning the member to the frame, the center of the mattress is held against the frame even when one portion of …
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 29, 2003 and granted December 11, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 29, 2025.
- 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.