Core material for bed and bed made therefrom
CA 2006003 A1 · Owner: Isshiki, Tadao · Inventors: Isshiki, Tadao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a core material for bed comprising a mat portion made of molded synthetic resin foam having a multiplicity of concavo-convexities in its surface and a supporting base portion also made of molded synthetic resin foam and disposed under said mat portion and having a multiplicity of vertical cutouts therein. Also disclosed is a bed comprised of the core material the surface of, which is decorated. The bed of the present invention is very light and has a proper cushioning property and thus it is not only easy to move and handle, but also it has no risk of damaging a floor, carpet, etc. and further no risk of, suffering any injury from stumbling over or hitting against 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 December 19, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 19, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 2011.
- 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.