Tiled surface covering
CA 2220185 A1 · Owner: Adams, David J. · Inventors: Adams, David J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A structure of tiles comprising numerous tiles which together form a surface covering, wherein at least part of each tile rests on a piece of underlay that lays between the surface covered and the tile. The piece of underlay had previously been fixed to the tile (having pressure-sensitive adhesive). In the embodiments of this invention the, underlay, optionally and preferably is still attached to, the tile forming an underlay which is permanently fixed to the tile. The surface covering of the present invention comprises tiles, each tile being square or rectangular and, having two opposed surfaces, wherein the tile has edges A B, C, and D, between the surfaces and further has a coating of a …
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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 November 4, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 4, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 2019.
- 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.