Granted Patent
Utility
US 4,641,005 · App. 06/820,593
Food receptacle for microwave cooking
Inventor:
Oscar E. Seiferth
Patented Case
View Patent ↗
Granted: Feb 3, 1987
Filed: Jan 21, 1986
Inventor
Oscar E. Seiferth
Assignee (at issue)
James River Corporation
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.