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Expired Canadian patentCanada

Substantive insect repellent/toxicant composition

CA 1286985 C · Owner: Matteson, John W. · Inventors: Randen, Neil A.; Matteson, John W.

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

Insect repellent/toxicant compositions for use on domestic animals comprising an effective amount of a pyrethroid, an oil soluble, water insoluble acrylate polymer and a liquid carrier are disclosed. The compositions are effective for an extended period of time.

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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 30, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 30, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 4, 1987
GrantedJuly 30, 1991
Term endedJuly 30, 2008
Patent numberCA 1286985 C
Classification (IPC)A01N25/02 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedSep 4, 1987Patent grantedJuly 30, 1991Term endedJuly 30, 2008

Sources & verification

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