Microwave food package
CA 2067161 C · Owner: The Procter & Gamble Company · Inventors: Prosise, Robert Lawrence; Bunke, Paul Ralph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A microwave food package (30) for use in microwave heating a plurality of food pieces (33) disposed in at least two layers in the package which heating is to effect crispening of exterior portions of the food pieces (33) and to brown exterior surface areas of the food pieces (33). The package (30) comprises microwave susceptor means (32 36) for applying heat generated in the microwave susceptor means (32, 36) to oppositely facing surface areas of each food piece (33) disposed in the package (30). An exemplary package comprises, for instance an enclosure such as a disposable carton (31) a top microwave susceptor (36), a bottom microwave susceptor, and an intermediate-elevation microwave …
Read the whole patent
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 November 26, 1990 and granted January 6, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 26, 2012.
- 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.