Granted Patent
Utility
US 5,459,663 · App. 08/165,094
Cab signal apparatus and method
Inventor:
Raymond C. Franke
Patented Case
View Patent ↗
Granted: Oct 17, 1995
Filed: Dec 10, 1993
Inventor
Raymond C. Franke
Assignee (at issue)
Union Switch & Signal, Inc.
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.