Package for microwaving corn
CA 1296679 C · Owner: American Home Products Corporation · Inventors: Anderson, Gary Dwight; Siegel, Howard P.; Bourns, George B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shelf stable package for shipping and popping corn in a microwave oven comprising, a bowl formed of microwaveable plastic transparent to microwave, energy with a conical bottom a charge comprising corn kernels and a shortening,which is solid at room temperature said kernels having a moisture content of atleast about 11.5 percent by weight and a plastic swirl cover layer, said plastic swirl being in the form of a plurality of folds disposed in a spiral arrangementbeing transparent to microwave energy and being expansible in response to, internal steam pressure generated by popping of said corn kernels. A microwave transparent paperboard shell covers at least a portion of said bowl. 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
- Granted March 3, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 2009.
- 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.