Granted Patent
Utility
US 4,135,145 · App. 05/720,841
Error detecting circuit for a traffic control system
Inventor:
Terrence F. Eberle
Patented Case
View Patent ↗
Granted: Jan 16, 1979
Filed: Sep 7, 1976
Inventor
Terrence F. Eberle
Assignee (at issue)
SOLID STATE DEVICES, 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.