Granted Patent
Utility
US 4,738,365 · App. 07/042,680
Frozen food container
Inventor:
Donald R. Prater
Patented Case
View Patent ↗
Granted: Apr 19, 1988
Filed: Apr 27, 1987
Inventor
Donald R. Prater
Assignee (at issue)
Ridgway Packaging Corp.
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.