Granted Patent
Utility
US 6,497,182 · App. 09/775,901
Railroad locomotive traction motor isolation
Inventors:
Donald J. Melpolder, Michael S. Lupichuk
Patented Case
View Patent ↗
Granted: Dec 24, 2002
Filed: Feb 2, 2001
Inventors
Donald J. Melpolder
Michael S. Lupichuk
Assignee (at issue)
General Electric Company
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.