Seat cushion or bed cushion
CA 1104273 A · Owner: Nordin, Inga · Inventors: Nordin, Inga
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A b s t r a c t, The invention relates to a bed of the water bed type and comprising a seat cushion or bed cushion having a support cushion (2) of an elastic foam plastic or foam rubber material which is enclosed in a water sealed and gas sealed bed tick (1) of a pliable but nonelastic material. The length and the width of the support cushion is substantially the same as those of the bed tick whereas the height of the bed tick is larger, for instance 20 % larger than the height of the support cushion. The support cushion is formed with several vertical through holes (5) having a cross section corresponding to a circle the diameter of which is 45 - 75 % of the height of the support cushion. …
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 June 30, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 1998.
- 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.