Granted Patent
Utility
US 5,241,588 · App. 07/629,371
Systems and processes providing programmable or customized customer telephone information services
Inventors:
David L. Babson, III, Thomas C. Ely
Patented Case
View Patent ↗
Granted: Aug 31, 1993
Filed: Dec 18, 1990
Inventors
David L. Babson, III
Thomas C. Ely
Assignee (at issue)
Bell Communications Research, 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.