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Expired Canadian patentCanada

Compact, high-capacity oven

CA 2073291 C · Owner: Caridis, Andrew Anthony · Inventors: Leary, Steven George; Benson, Clark Kertell; Caridis, Andrew Anthony

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

An oven with a box-like housing for efficient use of plant floor space encases a spiral food product carrying conveyor. A process vapor is circulated within the housing by "plug fans" with the inlet drawing vapor from the central axial zone of the spiral conveyor and exhausting into plenums along the periphery of the conveyor. The plenums have nozzles oriented to project the process vapor laterally towards the conveyor.

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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 July 7, 1992 and granted April 10, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 7, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 7, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 7, 1992
GrantedApril 10, 2001
Term endedJuly 7, 2012
Patent numberCA 2073291 C
Classification (IPC)A47J37/04 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedJuly 7, 1992Patent grantedApril 10, 2001Term endedJuly 7, 2012

Sources & verification

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