Seat with spring supporting frame
CA 2000667 C · Owner: Hoshino, Akihiko · Inventors: Hoshino, Akihiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein is an automotive seat which includes a seat frame and a plurality of S-springs which are spanned between spaced two portions of the seat frame. Each spring has one U-shaped end portion. In order to tightly and unmovably connect the U-shaped end portion of each spring to selected one of the side portions of the frame, an improved spring holding structure is formed on the selected portion of the frame, which includes a tunnel portion which is integrally formed on the selected portion and two raised portions which are integrally formed on the same selected portion in a manner to put therebetween the tunnel portion. The distance between the two raised portions is substantially …
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 October 13, 1989 and granted March 9, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 13, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 13, 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.