Granted Patent
Utility
US 5,345,069 · App. 07/761,153
Microwavable frozen impact-resistant hermetically sealed food package
Inventor:
Paul E. Grindrod
Patented Case
View Patent ↗
Granted: Sep 6, 1994
Filed: Sep 17, 1991
Inventor
Paul E. Grindrod
Assignee (at issue)
Oscar Mayer Foods 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.