Lying underlay
CA 2195203 A1 · Owner: Ohman, Gerth · Inventors: Ohman, Gerth
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lying underlay comprises on the one hand a thin first layer (2) of an allround flexible material of large wear and tear strength having a , substantially elongate basic form and being intended for forming a strong carrier, and on the other hand a considerably thicker second layer (3) which is permanently joined or integrated with the carrier layer (2) and which consists of a porous or fluffy soft material being intended for forming a mattress part. The mattress part (3) is divided into several elongate sections (5, 6, 7) by longitudinal slits (4, 4') which sections are jointly held , together by the carrier layer (2) more precisely in portions (8, 8') forming longitudinal folding …
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 July 26, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 26, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 26, 2016.
- 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.