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Expired Canadian patentCanada

Method of and apparatus for cooking foodstuffs

CA 1065632 A · Owner: Wallsten, Hans I. · Inventors: Wallsten, Hans I.

CIPO record

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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 method of and apparatus for cooking foodstuffs by boiling and/or steaming including the steps of placing the foodstuff in a disposable liquid-tight film or foil insert which is open at the top posit-, ioning the insert in a cooking vessel so that it is spaced from the bottom and walls thereof and heating the foodstuff by means of steam and water in the vessel. The insert may be of plastics material or metal. It may be shaped or in the form of a bag, and it is preferably held in a supporting holder within the vessel.

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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 November 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 6, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedNovember 6, 1979
Term endedNovember 6, 1996
Patent numberCA 1065632 A
Classification (IPC)A47J27/04 +1 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedNov 6, 1979Term endedNov 6, 1996

Sources & verification

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