Granted Patent
Utility
US 5,046,659 · App. 07/611,576
Latching structure for food container
Inventor:
Richard T. Warburton
Patented Case
View Patent ↗
Granted: Sep 10, 1991
Filed: Nov 13, 1990
Inventor
Richard T. Warburton
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.