Granted Patent
Utility
US 4,471,280 · App. 06/492,098
Anti-log power amplifier for reversible D.C. motor in automotive steering controls
Inventor:
Thomas E. Stack
Patented Case
View Patent ↗
Granted: Sep 11, 1984
Filed: May 6, 1983
Inventor
Thomas E. Stack
Assignee (at issue)
Bendix Limited
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.