Decorative material having abrasion resistance
CA 2180158 C · Owner: Takemoto, Masataka · Inventors: Matano, Takashi; Takahashi, Kazuhiro; Takemoto, Masataka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A decorative material of the present invention comprises a substrate and an abrasion-resistant coating layer formed thereon, and is characterized in that the abrasion-resistant coating layer comprises spherical particles (A) having an average particle diameter of 3 to 50 micrometers, and a binder (B) comprising crosslinkable resins, that the amount of the spherical particles (A) is from 5% to 50% by weight of the total amount of the components (A) and (B), that the hardness of the spherical particles (A) is higher than that of the binder (B) and, that the average particle diameter d (micrometers) of the spherical particles (A) fulfills the following inequality (1):, 0.3t ~ d ~ 3.0t (1), …
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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 October 31, 1995 and granted February 13, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2017.
- 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
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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.