Moisture, light and heat stability at moderate temperatures of monolayer and multilayer floor coverings shaped from polyvinyl chloride resin compositions
CA 2000877 A1 · Owner: Croce, Michael A. · Inventors: Brilliant, Stuart D.; Bae, Kook J.; Croce, Michael A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Monolayer and multilayer floor coverings are provided having an improved moisture, light and heat stability at moderate temperatures and shaped from polyvinyl chloride resin compositions, having at least a wear layer comprising a polyvinyl chloride resin, at least one heat stabilizer in a sufficient amount to impart heat processing stability and a, .beta.-diketone in a sufficient amount to provide after forming, moisture, light and heat stability at moderate temperatures not provided by any residual heat stabilizer as well as, polyvinyl chloride resin moisture light and heat stabilizer, compositions and polyvinyl chloride resin compositions containing such moisture, light and heat …
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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 17, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 17, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2011.
- 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.