Microwave popcorn package

Patent 4810844 Issued on March 7, 1989. Estimated Expiration Date:

November 30, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Popcorn package for microwave popping
Patent #: 3973045
Issued on: 08/03/1976
Inventor: Brandberg , et al.

Combined popping and shipping package for popcorn
Patent #: 4038425
Issued on: 07/26/1977
Inventor: Brandberg , et al.

Microwave popcorn package
Patent #: 4219573
Issued on: 08/26/1980
Inventor: Borek

Container for prepackaging, popping and serving popcorn
Patent #: 4292332
Issued on: 09/29/1981
Inventor: McHam

Package for increasing the volumetric yield of microwave cooked popcorn
Patent #: 4450180
Issued on: 05/22/1984
Inventor: Watkins

Tubular bag and method of making the same
Patent #: 4461031
Issued on: 07/17/1984
Inventor: Blamer

Popcorn bag
Patent #: 4503559
Issued on: 03/05/1985
Inventor: Warnke

Method for increasing the volumetric yield of microwave cooked popcorn
Patent #: 4548826
Issued on: 10/22/1985
Inventor: Watkins

Packaging container for microwave popcorn popping and method for using
Patent #: 4553010
Issued on: 11/12/1985
Inventor: Bohrer , et al.

Microwave ovenware assembly for popping grain
Patent #: 4563561
Issued on: 01/07/1986
Inventor: Vaeth , et al.

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Inventor

Anderson, Alan R.

Application

No. 07/126366 filed on 11/30/1987

US Classes:

219/727, Expandable219/730, With heat exchange (e.g., susceptor, etc.)219/735, Having vent383/104, FREE-STANDING383/122, Seamless383/210, BAG CLOSURE SECURED BY A RELEASABLE OR FRANGIBLE BOND (E.G., PEEL SEAL)383/211, Adhesive bond426/107, Having specific electrical or wave energy feature426/109, Having heat exchange material426/118, Packaging structure cooperating with food generated gas426/234, TREATMENT OF PACKAGED PRODUCT BY ELECTRICAL OR WAVE ENERGY426/241, Heating by electromagnetic wave426/242Product dry in final form

Examiners

Primary: Pellinen, A. D.
Assistant: Fuller, Leon K.

Attorney, Agent or Firm

Woodcock Washburn Kurtz Mackiewicz & Norris

International Classes

B65D 30/10 (20060101)
B65D 30/20 (20060101)
B65D 81/34 (20060101)

Abstract

This invention relates to a package for popcorn to be cooked in a microwave oven. The package serves as a package for the unpopped corn, as a container for the corn while it is being popped, and also as a serving container for the popped corn. The package utilizes a bag comprising two opposing side panels and an inwardly pleated bottom panel between said opposing side panels, the outside edges of said side panels being joined to one another and to the outside edges of said inwardly pleated bottom panel, portions of said opposing side panels further being joined to portions of said bottom panel so that the inside surface area of said bottom panel is substantially less than the outside surface area of said bottom panel.