Granted Patent
Utility
US 4,254,481 · App. 06/065,477
Borehole telemetry system automatic gain control
Inventors:
Miles A. Smither, Octavio A. Vela
Patented Case
View Patent ↗
Granted: Mar 3, 1981
Filed: Aug 10, 1979
Inventors
Miles A. Smither
Octavio A. Vela
Assignee (at issue)
Sperry-Sun, 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.