Granted Patent
Utility
US 5,508,698 · App. 08/099,257
Vehicle detector with environmental adaptation
Inventor:
Earl B. Hoekman
Patented Case
View Patent ↗
Granted: Apr 16, 1996
Filed: Jul 29, 1993
Inventor
Earl B. Hoekman
Assignee (at issue)
Minnesota Mining and Manufacturing 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.