Granted Patent
Utility
US 4,134,513 · App. 05/811,409
Child-resistant safety closure
Inventor:
George V. Mumford
Patented Case
View Patent ↗
Granted: Jan 16, 1979
Filed: Jun 29, 1977
Inventor
George V. Mumford
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.