Granted Patent
Utility
US 5,791,450 · App. 08/790,864
Tamper-resistant vending machine
Inventor:
Kenneth W. Oden
Patented Case
View Patent ↗
Granted: Aug 11, 1998
Filed: Feb 3, 1997
Inventor
Kenneth W. Oden
Assignee (at issue)
ROYAL VENDORS, 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.