Granted Patent
Utility
US 5,939,846 · App. 08/923,484
AC motorized wheel control system
Inventors:
Henry Todd Young, Frederick Beach
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: Sep 4, 1997
Inventors
Henry Todd Young
Frederick Beach
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.