Granted Patent
Utility
US 4,398,635 · App. 06/403,904
Child-proof medication package
Inventor:
Edmund Hirt
Patented Case
View Patent ↗
Granted: Aug 16, 1983
Filed: Jul 30, 1982
Inventor
Edmund Hirt
Assignee (at issue)
American Can Company
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.