Microwave heating package
CA 1281007 C · Owner: General Mills, Inc. · Inventors: Mcdonald, Duane L.; Mikulski, Barry S.; Deffenbaugh, Lynn B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are packaged frozen food articles which are adapted to be heated by microwave. The articles include a frozen food item and a microwave heating package. The packages include a tray and an overwrapped paperboard carton having a microwave shield and having a plurality of windows in the sleeve. The package further includes an opposed pair of spaced parallel upper and lower microwave susceptor heating cards each comprising an inner heating layer mounted on a mounting board, and a means for spacing the heating cards from the microwave shield such as a spaced pair of corrugated paperboard spacers intermediate the microwave shield and the heating cards. The heating layers are in direct …
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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 March 5, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 5, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.