Granted Patent
Utility
US 5,111,288 · App. 07/772,601
Surveillance camera system
Inventor:
David M. Blackshear
Patented Case
View Patent ↗
Granted: May 5, 1992
Filed: Oct 8, 1991
Inventor
David M. Blackshear
Assignee (at issue)
Diamond Electronics, 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.