Method for shaping cover materials
CA 2134236 C · Owner: Creme Art Corporation · Inventors: Thary, Christian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for three-dimensionally shaping cover materials such as woven or knitted fabrics vinyl, leather, and the like is, performed by providing a cover material (18) and a layer of foamable liquid reaction mixture such as polyurethane which changes from liquid to a viscous state (16') at the beginning of the gas generating reaction compressing the combined cover material and the foamed layer in a mold (21, 22) having surface configurations corresponding to desired final three-dimensional shapes with the compression being performed when the foam layer has substantially completed rising but before substantial curing, thereof takes place and then allowing the foamed layer bonded to the cover …
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 May 5, 1993 and granted November 24, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 5, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 5, 2015.
- 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.