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Expired Canadian patentCanada

Grinder discharge chute

CA 2041725 C · Owner: Ford, David F. · Inventors: Ford, David F.

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

A coffee grinder discharge chute for use with a coffee grinder operatively attached to a discharge opening in the grinder. The chute is comprised of a generally vertical elongate channel-shaped body having a generally tubular upper section and a channel-shaped lower portion. A grind directing cover is hingedly attached to the chute body over the channel-shaped lower portion to adjustably enclose the flow of ground coffee discharged through the chute thereby shielding the discharged ground coffee from ambient air currents. An end of the chute has sides which are cut back to provide increased grind flow therethrough and an inwardly directed end portion against which the coffee exerts a force …

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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 May 2, 1991 and granted July 26, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 2, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 2, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 2, 1991
GrantedJuly 26, 1994
Term endedMay 2, 2011
Patent numberCA 2041725 C
Classification (IPC)A47J42/40

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedMay 2, 1991Patent grantedJuly 26, 1994Term endedMay 2, 2011

Sources & verification

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