Granted Patent
Utility
US 6,420,972 · App. 09/691,516
Door monitor for a gaming machine
Inventor:
Timothy C. Loose
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Oct 18, 2000
Inventor
Timothy C. Loose
Assignee (at issue)
WMS GAMING, 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.