Granted Patent
Utility
US 5,473,676 · App. 08/287,207
Telephone handset interface for automatic switching between voice and data communications
Inventors:
Kenneth L. Frick, Gregory Muir, Michael M. Winseck, Jr.
Patented Case
View Patent ↗
Granted: Dec 5, 1995
Filed: Aug 8, 1994
Inventors
Kenneth L. Frick
Gregory Muir
Michael M. Winseck, Jr.
Assignee (at issue)
Radish Communication 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.