The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 1992
Filed:
Jul. 13, 1990
James D Watkins, Prior Lake, MN (US);
Lawrence C Brandberg, Crystal, MN (US);
Jeffrey T Watkins, St. Paul, MN (US);
Charles H Turpin, Minneapolis, MN (US);
Denise E Hanson, Elk River, MN (US);
Golden Valley Microwave Foods Inc., Edina, MN (US);
Abstract
The invention provides a package for popping popcorn in a microwave oven including an open-topped wide mouth container in the form of a tub or bowl formed from self-supporting, i.e. stiff, microwave transparent sheet material such as stiff paper or paperboard with a flexible and expandable cover. A layer of microwave interactive susceptor material is distributed across the bottom wall of the tub to assist in popping the popcorn. Unpopped popcorn within the tub is packaged in a sealed inner compartment or container within the tub. During cooking, the flexible cover expands upwardly as the kernels pop so as to accommodate their expansion.