Granted Patent
Utility
US 5,224,615 · App. 07/741,610
Child resistant container and safety closure
Inventor:
Frederick R. Hickerson
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Aug 7, 1991
Inventor
Frederick R. Hickerson
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.