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Expired Canadian patentCanada

Hydroxyalkylamide powder coating curing system

CA 1330682 C · Owner: Vicha, Susan Kay · Inventors: Kaufman, Marvin Leonard; Pettit, Paul Herschel Jr.; Vicha, Susan Kay

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

The thermosetting powder coating composition which has good stability and gives good physical properties such as exterior, durability, appearance flexibility, hardness, solvent resistance and corrosion resistance, is disclosed. The composition comprises a co-reactable particulate mixture of a carboxylic acid group-containing polyester and a beta-hydroxylalkylamide.

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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 July 12, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 12, 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.
FiledDecember 16, 1988
GrantedJuly 12, 1994
Term endedJuly 12, 2011
Patent numberCA 1330682 C
Classification (IPC)C09D5/03 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedDec 16, 1988Patent grantedJuly 12, 1994Term endedJuly 12, 2011

Sources & verification

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