Granted Patent
Utility
US 5,974,137 · App. 08/711,682
AGC amplifier for two-wire line conditioner
Inventors:
Laurence L. Sheets, Stanley J. Chmura
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Sep 4, 1996
Inventors
Laurence L. Sheets
Stanley J. Chmura
Assignee (at issue)
Teltrend, 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.