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Expired Canadian patentCanada

Detergent composition

CA 1214705 A · Owner: Unilever Plc · Inventors: Garner-Gray, Peter F.

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

Improved storage stability of detergent compositions containing an aluminosilicate material as a detergency builder and sodium perborate in the form of its monohydrate having a specific surface area of more than 5 m2/g, preferably more than 7 m2/g. Other conventional materials, in particular other detergency builders and, bleach activators may also be present in the compositions.

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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 December 2, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 2, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 20, 1983
GrantedDecember 2, 1986
Term endedDecember 2, 2003
Patent numberCA 1214705 A
Classification (IPC)C11D3/39 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedJune 20, 1983Patent grantedDec 2, 1986Term endedDec 2, 2003

Sources & verification

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