Granted Patent
Utility
US 6,402,572 · App. 08/978,033
Electric switching device assembly system
Inventors:
Richard W. Sevier, James J. Keenan
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Nov 25, 1997
Inventors
Richard W. Sevier
James J. Keenan
Assignee (at issue)
HENDRY MECHANICAL WORKS
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.