Granted Patent
Utility
US 5,012,928 · App. 07/549,224
Stackable food container with lid
Inventors:
James Proffitt, Dale S. Richardson
Patented Case
View Patent ↗
Granted: May 7, 1991
Filed: Jul 6, 1990
Inventors
James Proffitt
Dale S. Richardson
Assignee (at issue)
Borden Inc.
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.