Granted Patent
Utility
US 5,848,149 · App. 08/451,249
Subscriber line interface and power circuit
Inventors:
Robert Chen, Paul W. Frazier, John Gammel, Andrew Marsh, Apurba Roy, Dewayne A. Spires
Patented Case
View Patent ↗
Granted: Dec 8, 1998
Filed: May 26, 1995
Inventors
Robert Chen
Paul W. Frazier
John Gammel
Andrew Marsh
Apurba Roy
Dewayne A. Spires
Assignee (at issue)
LUCENT TECHNOLOGIES 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.