Granted Patent
Utility
US 5,225,665 · App. 07/954,421
Ticket originating and processing device for transit vehicle
Inventors:
Arthur S. Zerfahs, Norman Diamond, Larry E. Zack
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Sep 29, 1992
Inventors
Arthur S. Zerfahs
Norman Diamond
Larry E. Zack
Assignee (at issue)
Federal Signal 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.