Granted Patent
Utility
US 4,839,480 · App. 07/117,280
Vehicle sensing device
Inventor:
Alan Charles Bickley
Patented Case
View Patent ↗
Granted: Jun 13, 1989
Filed: Nov 4, 1987
Inventor
Alan Charles Bickley
Assignee (at issue)
The Gates Rubber 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.