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Expired Canadian patentCanada

French fry formulations

CA 2178273 C · Owner: Woerman, John Harold · Inventors: Wu, Yangsheng; Woerman, John Harold

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

The present invention provides improved compositions for coating of potato strip products having an as is solids content which comprises not less than about 50% by weight ungelatinized crosslinked potato starch having a viscosity of from 200 to 1100 BU when measured at 9 % solids concentration for 15 minutes at 95°, and from 15 to 25% by weight rice flour.

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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

  • Filed June 5, 1996 and granted March 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 5, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 5, 2018.
  • 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 5, 1996
GrantedMarch 23, 1999
Term endedJune 5, 2016
Patent numberCA 2178273 C
Classification (IPC)—

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJune 5, 1996Patent grantedMarch 23, 1999Term endedJune 5, 2016

Sources & verification

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