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Expired Canadian patentCanada

Crosslinkable surface coatings and methods for producing same

CA 2079455 C · Owner: Sampath, Pasupathikoil R. · Inventors: Grosse, Daniel J.; Sampath, Pasupathikoil R.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A method for producing a novel evaporable dispersion is disclosed. The dispersion exhibits shelf-storage stability at room temperature for more than 1 year. Such a dispersion upon evaporation of the , evaporable components is able to form a , cross-linked surface coating on a substrate upon curing at room temperature or elevated temperature.

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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 February 27, 1991 and granted November 7, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 27, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 27, 1991
GrantedNovember 7, 2000
Term endedFebruary 27, 2011
Patent numberCA 2079455 C
Classification (IPC)C08L63/00 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedFeb 27, 1991Patent grantedNov 7, 2000Term endedFeb 27, 2011

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.