Granted Patent
Utility
US 5,181,313 · App. 07/818,597
Method of making a variable power resistor
Inventors:
Ronald C. Nonnenmacher, Kathleen M. Schulz, Richard C. Lewis, Richard E. Riley
Patented Case
View Patent ↗
Granted: Jan 26, 1993
Filed: Jan 9, 1992
Inventors
Ronald C. Nonnenmacher
Kathleen M. Schulz
Richard C. Lewis
Richard E. Riley
Assignee (at issue)
United Technologies Automotive
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.