Granted Patent
Utility
US 5,959,570 · App. 08/975,965
Automotive forward looking sensor blockage detection system and related techniques
Inventor:
Mark E. Russell
Patented Case
View Patent ↗
Granted: Sep 28, 1999
Filed: Nov 21, 1997
Inventor
Mark E. Russell
Assignee (at issue)
Raytheon 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.