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Expired Canadian patentCanada

Particulate built nonionic synthetic organic detergent composition

CA 1251710 A · Owner: Colgate-Palmolive Company · Inventors: Taha, Riad A.

CIPO record

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

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Abstract From the Canadian patent

A particulate built nonionic synthetic organic detergent composition includes a detersive proportion of a nonionic synthetic organic detergent and a building proportion, in combination, of a polyacetal carboxylate builder for the nonionic detergent, and carbonate bicarbonate, and zeolite builders for such nonionic detergent. Such compositions may readily be made by adding polyacetal carboxylate builder to the formula of a control detergent composition, with corresponding diminutions in proportions of other component(s), and have detersive powers superior to such control despite the decrease in proportions present of detergent and other builders. Preferably certain, nonionic detergents, …

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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 March 28, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 28, 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.
FiledMay 29, 1985
GrantedMarch 28, 1989
Term endedMarch 28, 2006
Patent numberCA 1251710 A
Classification (IPC)C11D3/12 +1 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedMay 29, 1985Patent grantedMarch 28, 1989Term endedMarch 28, 2006

Sources & verification

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