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Expired Canadian patentCanada

Food serving system

CA 1161485 A · Owner: Sweetheart Plastics, Inc. · Inventors: Mack, Anthony C.; Phillips, Robert A.; Shumrak, George K.

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

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Abstract From the Canadian patent

Abstract of the Disclosure An energy saving food serving system for rethermalization of the food and for delivery prepared meals to locations remote from the place of preparation, such as to patients in hospitals and nursing homes. The system includes a mobile cart having its own rechargeable power pack that is utilized to propel the cart. This power pack may also be used for heating purposes but, preferably to conserve battery usage heating may also be provided via a conventional AC source. The cart has separate bays each having a tier of racks for, carrying individual food serving trays. Each tray has one or more thermally isolated heat transfer devices which are selectably energized when …

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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 January 31, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 31, 2001.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 23, 1980
GrantedJanuary 31, 1984
Term endedJanuary 31, 2001
Patent numberCA 1161485 A
Classification (IPC)F24C7/08 +1 more

Timeline

Timeline From CIPO dates

1981198419871990199319961999Application filedOct 23, 1980Patent grantedJan 31, 1984Term endedJan 31, 2001

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