Granted Patent
Utility
US 4,270,171 · App. 06/018,411
Position sensing and indicating device
Inventors:
James Maples, Robert B. Pepper
Patented Case
View Patent ↗
Granted: May 26, 1981
Filed: Mar 7, 1979
Inventors
James Maples
Robert B. Pepper
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.