Granted Patent
Utility
US 5,300,748 · App. 07/919,797
Recyclable microwavable container with a hinged removable outer shell
Inventor:
Edward A. Colombo
Patented Case
View Patent ↗
Granted: Apr 5, 1994
Filed: Jul 27, 1992
Inventor
Edward A. Colombo
Assignee (at issue)
Mobil Oil 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.