Granted Patent
Utility
US 4,809,868 · App. 07/142,502
Storage and cooking container with lid release tab
Inventor:
James F. Pomroy
Patented Case
View Patent ↗
Granted: Mar 7, 1989
Filed: Jan 11, 1988
Inventor
James F. Pomroy
Assignee (at issue)
PLASTAL CO., LTD.
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.