Granted Patent
Utility
US 4,680,786 · App. 06/782,312
Communication system for providing business communication features to cellular mobile telecommunication customers
Inventors:
Robin C. Baker, Steven E. Brown, John R. Lothrop, Roman Lozyniak, Paul E. Miller
Patented Case
View Patent ↗
Granted: Jul 14, 1987
Filed: Oct 1, 1985
Inventors
Robin C. Baker
Steven E. Brown
John R. Lothrop
Roman Lozyniak
Paul E. Miller
Assignees (at issue)
AT&T CORP.
AT&T Information Systems 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.