Granted Patent
Utility
US 4,273,249 · App. 05/808,755
Sandwich container
Inventor:
John Florian
Patented Case
View Patent ↗
Granted: Jun 16, 1981
Filed: Jun 22, 1977
Inventor
John Florian
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.