Granted Patent
Utility
US 4,580,260 · App. 06/606,803
Analog subscriber carrier system terminal with automatic gain and slope correction
Inventors:
Tom L. Blackburn, David J. Farrell
Patented Case
View Patent ↗
Granted: Apr 1, 1986
Filed: May 3, 1984
Inventors
Tom L. Blackburn
David J. Farrell
Assignee (at issue)
GTE Communication Systems Corporation
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.