Selectively-removable indicia-containing surface-coating method
CA 2136354 C · Owner: Diversey, Inc. · Inventors: Helf, Thomas A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel, layered, indicia-containing, surface-coating composite for application to a substrate F such as a floor is disclosed. The novel composite comprises a layer of pressure-sensitive adhesive (16) and a layer of indicia (14, 15) having the layer of pressure-sensitive adhesive (16) on one side thereof. The pressure-sensitive adhesive layer (16) secures the indicia layer (14, 15) to the floor F. "Tack" properties of the pressure-sensitive adhesive (16) may range from 50 to 2000 grams per square centimeter. The novel composite further includes an alkali-soluble transparent polymeric layer (18) on the opposite side of the indicia layer (14 15). Also disclosed is a method , of …
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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 June 13, 1994 and granted August 24, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 13, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 13, 2016.
- 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.