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Expired Canadian patentCanada

Density separation of aflatoxin-contaminated grain or nuts

CA 1320171 C · Owner: Schmidt, Arthur Alfred · Inventors: Schmidt, Arthur Alfred; Smith, Charles Albert; Kreutzer, Stanley Henry

CIPO record

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Abstract From the Canadian patent

Abstract of the Disclosure, Disclosed is a method for separating mycotoxincontaminated grains, kernels, seeds and nuts from uncontarn-, inated whole grain seeds whole or split kernel nuts and, seeds to obtain a substantially uncontaminated supply source of these foods. The separate contaminated source can be further processed to lower the mycotoxin contamination. The process involves the density separation of the mycotoxin or afatoxin-containing materials by floating the aflatoxincontaminated foods in a liquid. A highly preferred process uses dynamic flotation.

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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 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 13, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 29, 1988
GrantedJuly 13, 1993
Term endedJuly 13, 2010
Patent numberCA 1320171 C
Classification (IPC)A23L1/10 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedApril 29, 1988Patent grantedJuly 13, 1993Term endedJuly 13, 2010

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