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Expired Canadian patentCanada

Method of enhancing the effectiveness of biocides

CA 1211368 A · Owner: Halliburton Company · Inventors: Penny, Glenn S.

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

Abstract of the Disclosure, Methods of increasing biocide effectiveness are provided wherein bacteria are contacted with an admixture of a biocide and a cationic perfluoro compound represented by the following formula:,

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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 September 16, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 16, 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.
FiledJanuary 26, 1984
GrantedSeptember 16, 1986
Term endedSeptember 16, 2003
Patent numberCA 1211368 A
Classification (IPC)A01N25/00 +2 more

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedJan 26, 1984Patent grantedSep 16, 1986Term endedSep 16, 2003

Sources & verification

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