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Expired Canadian patentCanada

Detergent compositions

CA 1059002 A · Owner: The Procter And Gamble Company · Inventors: Marsh, Robert A.; Mackie, Gordon J.; Hale, Peter

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Abstract From the Canadian patent

DETERGENT COMPOSITIONS, R.A. Marsh, G.J. Mackie P. Hale, ABSTRACT OF THE DISCLOSURE, Detergent Compositions having a protective effect on keratinous material incorporate a proteinaceous material whose primary amino or carboxylic acid side chain groups have been modified by reaction with C1-C7 acyl- or alkyl- group-containing materials respectively to give a modified protein of isoionic point (pI) less than pH 6. Granular, bar and liquid detergent formulations embodying the invention are disclosed.

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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 24, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 24, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJuly 24, 1979
Term endedJuly 24, 1996
Patent numberCA 1059002 A
Classification (IPC)C11D1/32 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedJuly 24, 1979Term endedJuly 24, 1996

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