Granted Patent
Utility
US 4,905,147 · App. 06/919,128
Collision detection system for video system
Inventor:
George E. Logg
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Oct 15, 1986
Inventor
George E. Logg
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.