Granted Patent
Utility
US 4,625,199 · App. 06/691,156
Combination intrusion detector system having correlated ultrasonic and microwave detection sub-systems
Inventor:
Math Pantus
Patented Case
View Patent ↗
Granted: Nov 25, 1986
Filed: Jan 14, 1985
Inventor
Math Pantus
Assignee (at issue)
American District Telegraph 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.