Granted Patent
Utility
US 5,598,401 · App. 08/407,749
Apparatus and method for a digital data communications device to operate in an analog mode
Inventors:
Steven R. Blackwell, John Timothy Pearson, Charles C. Fridlin, IV
Patented Case
View Patent ↗
Granted: Jan 28, 1997
Filed: Mar 21, 1995
Inventors
Steven R. Blackwell
John Timothy Pearson
Charles C. Fridlin, IV
Assignee (at issue)
Motorola, 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.