Granted Patent
Utility
US 4,855,770 · App. 07/242,178
Vehicle identification camera
Inventors:
Donald E. Mauchan, Frederick Slavitter
Patented Case
View Patent ↗
Granted: Aug 8, 1989
Filed: Sep 9, 1988
Inventors
Donald E. Mauchan
Frederick Slavitter
Assignee (at issue)
Polaroid Corporation
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.