Granted Patent
Utility
US 6,023,036 · App. 09/296,003
Electrical contact wear and temperature indicator
Inventor:
Bruce W. Nichols
Patented Case
View Patent ↗
Granted: Feb 8, 2000
Filed: Apr 21, 1999
Inventor
Bruce W. Nichols
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.