Inflated seat
CA 2010366 C · Owner: Amobi Inc. · Inventors: Rioux, Jean-Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A seat made of a plurality of adjacently positioned cushions is characterized by each cushions having an envelope made of a gas-tight elastic material. Each envelope has a predetermined shape under a maximum gas pressure causing no elastic extension of the material. The envelope contains a reduced internal gas pressure slightly less than the maximum gas pressure to allow the sagging of the predetermined shape. The reduced gas pressure is sufficient to prevent opposite walls of the seat to collapse one against the other upon external pressure of a portion of a human body. The material forming the envelope of the cushion has an elasticity sufficient to stretch and to conform to the contour 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 February 19, 1990 and granted June 25, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 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.