Granted Patent
Utility
US 4,890,768 · App. 07/103,334
Self draining container
Inventor:
Gerald R. Robinson
Patented Case
View Patent ↗
Granted: Jan 2, 1990
Filed: Oct 1, 1987
Inventor
Gerald R. Robinson
Assignee (at issue)
Owens-Illinois Plastic Products 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.