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Expired Canadian patentCanada

Temperature controlled susceptor structure

CA 2098184 C · Owner: The Pillsbury Company · Inventors: Lentz, Ronald R.; Perry, Michael R.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A susceptor (10) according to the present invention includes a substrate (12) having physical properties so that melting and size deformation of the substrate (12) occur in response to microwave absorption by the susceptor (10). A metallized layer (14) is coupled to the substrate (12), and supporting means (16) is provided for supporting the substrate (12) and the metallized layer (14).

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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 September 30, 1991 and granted June 17, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 30, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 30, 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.
FiledSeptember 30, 1991
GrantedJune 17, 1997
Term endedSeptember 30, 2011
Patent numberCA 2098184 C
Classification (IPC)H05B6/80 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedSep 30, 1991Patent grantedJune 17, 1997Term endedSep 30, 2011

Sources & verification

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