Granted Patent
Utility
US 5,300,747 · App. 07/763,235
Composite material for a microwave heating container and container formed therefrom
Inventor:
Frederick E. Simon
Patented Case
View Patent ↗
Granted: Apr 5, 1994
Filed: Sep 20, 1991
Inventor
Frederick E. Simon
Assignee (at issue)
Campbell Soup Company
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.