Granted Patent
Utility
US 4,945,367 · App. 07/391,173
Surveillance camera system
Inventor:
David M. Blackshear
Patented Case
View Patent ↗
Granted: Jul 31, 1990
Filed: Aug 9, 1989
Inventor
David M. Blackshear
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.