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Expired Canadian patentCanada

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CA 1320175 C · Owner: Unilever Plc · Inventors: Petroni, Marco; Conti, Antonio; Gagliardi, Vittorio

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

Q.7064, ABSTRACT, A disposable package for cooking or heating foodstuffs comprises heat resistant container (8) made of disposable material and at least one semi-permeable partition (12). The container is divided into upper (13) and lower (14) compartments by the partition. The upper compartment contains the foodstuff to be cooked or heated and the lowermost compartment contains an edible substance comprising aroma and/or flavouring materials. Foodstuffs can be cooked or heated uniformly and at constant temperature using this package.

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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.
FiledJuly 22, 1988
GrantedJuly 13, 1993
Term endedJuly 13, 2010
Patent numberCA 1320175 C
Classification (IPC)B65D81/34

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedJuly 22, 1988Patent grantedJuly 13, 1993Term endedJuly 13, 2010

Sources & verification

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