Improvements in matting
CA 2121840 C · Owner: Sutherland, Thomas Langley · Inventors: Sutherland, Thomas Langley
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Entrance matting includes a flexible base layer (12) and a flexible upper layer (14) comprising spaced upstanding strips, (16) and defining slots (18) therebetween. Strips of carpet and the like (20) are fixed in the slots (18). The matting is located on a floor at a building entrance with the strips (16 20) perpendicular to the direction of traffic over the matting for use in scraping dirt and talking moisture from the feet of people entering the building.
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 26, 1992 and granted February 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 26, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 26, 2014.
- 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.