Granted Patent
Utility
US 4,678,094 · App. 06/857,197
Tamper-resistant container cap
Inventor:
Joseph J. Bullock, III
Patented Case
View Patent ↗
Granted: Jul 7, 1987
Filed: Apr 29, 1986
Inventor
Joseph J. Bullock, III
Assignee (at issue)
Bankers Trust Corporation
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.