Granted Patent
Utility
US 4,369,892 · App. 05/792,757
Container with expansion type locking closure
Inventor:
Albert R. Uhlig
Patented Case
View Patent ↗
Granted: Jan 25, 1983
Filed: May 2, 1977
Inventor
Albert R. Uhlig
Assignee (at issue)
Owens-Illinois 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.