Granted Patent
Utility
US 4,528,545 · App. 06/574,756
Multi-position return to center potentiometer
Inventor:
Warren R. Lang
Patented Case
View Patent ↗
Granted: Jul 9, 1985
Filed: Jan 26, 1984
Inventor
Warren R. Lang
Assignee (at issue)
Sperry Corp.
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.