Granted Patent
Utility
US 4,587,652 · App. 06/622,939
Data control for telephone system
Inventor:
Stuart O. Goldman
Patented Case
View Patent ↗
Granted: May 6, 1986
Filed: Jun 21, 1984
Inventor
Stuart O. Goldman
Assignee (at issue)
ITT 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.