Border for air bed
CA 2012550 C · Owner: Select Comfort Corporation · Inventors: Walker, Robert A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An air bed has side-by-side air mattresses confined within the perimeter of a rectangular border. The border has a plurality of border walls each located within a fabric case. The case accommodates upper and lower foam members of different density. The upper foam member has a density so as to be sufficiently resilient reducing discomfort to a resting person. The lower foam member has a density so as to be sufficiently rigid to retain the air mattresses within the perimeter of the border. VELCRO (trade mark) fasteners are used to normally join the border walls. The bed is equipped with a cover having a releasable fastener so that the cover may be readily removed from the air mattresses and …
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 19, 1990 and granted March 9, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 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.