Granted Patent
Utility
US 4,609,778 · App. 06/654,886
Trunk call processing services for host computer interconnections
Inventors:
Andrew Franklin, John R. Lothrop, John D. Wiidakas
Patented Case
View Patent ↗
Granted: Sep 2, 1986
Filed: Sep 27, 1984
Inventors
Andrew Franklin
John R. Lothrop
John D. Wiidakas
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.