Granted Patent
Utility
US 4,533,058 · App. 06/676,029
One-piece thermoplastic child-resistent dispensing closure
Inventor:
Albert P. Uhlig
Patented Case
View Patent ↗
Granted: Aug 6, 1985
Filed: Nov 28, 1984
Inventor
Albert P. 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.