Granted Patent
Utility
US 4,499,336 · App. 06/437,646
Common channel interoffice signaling system
Inventors:
Agop K. Krikor, Sergio E. Puccini
Patented Case
View Patent ↗
Granted: Feb 12, 1985
Filed: Oct 29, 1982
Inventors
Agop K. Krikor
Sergio E. Puccini
Assignee (at issue)
GTE Automatic Electric Incorporated
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.