Mat structure and method of matting a picture
CA 2072153 C · Owner: Cohart, Richard M. · Inventors: Cohart, Richard M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mat structure and method of matting, wherein in one embodiment, a first mat , (10) is formed having a first opening (12). A second mat (22) is formed having an opening (18) smaller than the first opening in the first mat. A third mat (16) is formed having an opening (20) corresponding to the outer dimensions of the second mat (22) and corresponding to the dimensions of a picture (26) to be matted. A backing member (24) is secured to the third mat (16), A picture (26) is positionned within the opening (20) in the third mat (16) so that, when the second mat (10) is positioned over the third mat (16), the picture (26) is secured in place by the second mat (22) opposing the backing member …
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 December 12, 1990 and granted August 15, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 12, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 12, 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.