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Expired Canadian patentCanada

Fatty halo alkanoate quaternaries of dialkylaminopropylamides

CA 1107294 A · Owner: Van Dyk & Company, Inc. · Inventors: Conner, Donald E.; Fogel, Arnold W.

CIPO record

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Abstract From the Canadian patent

Novel compositions of matter consisting of fatty halo alkanoate quaternaries of dialkylaminopropylamides have been found to be excellent emollients having surprisingly good anti-tangle and anti-static properties in hair preparations. They are prepared by reacting the dialkylaminopropylamides with fatty halo alkanoate esters.

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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 August 18, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 11, 1977
GrantedAugust 18, 1981
Term endedAugust 18, 1998
Patent numberCA 1107294 A
Classification (IPC)C11C3/00 +1 more

Timeline

Timeline From CIPO dates

1978198119841987199019931996Application filedFeb 11, 1977Patent grantedAug 18, 1981Term endedAug 18, 1998

Sources & verification

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