Granted Patent
Utility
US 4,932,047 · App. 07/092,346
Conversational video phone
Inventors:
Lawrence D. Emmons, James S. Mackley, David Stokes, Rudolph S. Stefenel, William E. Brisko, Jr., Michael A. Cooper-Hart
Patented Case
View Patent ↗
Granted: Jun 5, 1990
Filed: Sep 2, 1987
Inventors
Lawrence D. Emmons
James S. Mackley
David Stokes
Rudolph S. Stefenel
William E. Brisko, Jr.
Michael A. Cooper-Hart
Assignee (at issue)
Luma Telecom 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.