Granted Patent
Utility
US 5,958,482 · App. 08/954,244
Easily expandable nontrapping flexible paper microwavable popcorn package
Inventor:
Randal J. Monforton
Patented Case
View Patent ↗
Granted: Sep 28, 1999
Filed: Oct 20, 1997
Inventor
Randal J. Monforton
Assignee (at issue)
General Mills, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.