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Expired Canadian patentCanada

Water reducible aerosol paints

CA 1256623 A · Owner: Plasti-Kote Company, Inc. · Inventors: Cachat, Francis J.; Rapaport, Stanley

CIPO record

Overview

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

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Abstract From the Canadian patent

An aerosol paint system under sprayable pressures in the container is provided comprising two film-forming polymeric binders. One of the two being monomer modified alkyd resin of relatively low molecular weight having an acid value (before neutralization with selected bases) of about 40 to 80 and the second polymeric binder of water-reducible nature being an emulsion polymer latex of high molecular weight but capable of, forming a continuous film in the total aerosol paint system aided by the monomer modified alkyd and a selection from cosolvents including in a first group low molecular weight alcohols ketones, and esters and in a second group the co-solvents illustrated by the …

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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

  • Granted June 27, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 27, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 25, 1983
GrantedJune 27, 1989
Term endedJune 27, 2006
Patent numberCA 1256623 A
Classification (IPC)C08K3/30 +2 more

Timeline

Timeline From CIPO dates

19841987199019931996199920022005Application filedJuly 25, 1983Patent grantedJune 27, 1989Term endedJune 27, 2006

Sources & verification

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