Granted Patent
Utility
US 4,904,831 · App. 07/293,164
Mitered mechanical switches
Inventors:
Harvey C. Nathanson, Michael C. Driver, Michael W. Cresswell, Ronald G. Freitag, Donald K. Alexander, Daniel F. Yaw
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Jan 3, 1989
Inventors
Harvey C. Nathanson
Michael C. Driver
Michael W. Cresswell
Ronald G. Freitag
Donald K. Alexander
Daniel F. Yaw
Assignee (at issue)
Westinghouse Electric Company LLC
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.