Microwaveable container with enhanced temperature uniformity
CA 2116897 C · Owner: Tenneco Packaging Inc. · Inventors: Fritz, Jill Ann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A container constituted of a microwave transparent material for the heating or cooking of foods or comestibles through the intermediary of microwaves at a high degree of efficiency and with an enhanced temperature uniformity. The present invention is directed to the provision of a simple and inexpensive multi-compartmented container structure which is constituted of a microwave transparent material wherein the multi-compartmented container base is configured in a manner to produce in each compartment a generally upwardly curved bottom wall and inwardly curved and outwardly curved grooved lateral end walls and lateral side walls respectively, with the lower end of each side wall including a …
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 March 3, 1994 and granted August 3, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 3, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 3, 2016.
- 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.