Granted Patent
Utility
US 4,358,466 · App. 06/172,922
Freezer to microwave oven bag
Inventor:
Fred Stevenson
Patented Case
View Patent ↗
Granted: Nov 9, 1982
Filed: Jul 28, 1980
Inventor
Fred Stevenson
Assignee (at issue)
THE DOW CHEMICAL 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.