Granted Patent
Utility
US 6,236,136 · App. 09/259,518
Methods and results of manufacturing commutators
Inventors:
Shepard Hockaday, Alvin Farthing, Tony Earl Hall, John David Reece, Jr.
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: Feb 26, 1999
Inventors
Shepard Hockaday
Alvin Farthing
Tony Earl Hall
John David Reece, Jr.
Assignee (at issue)
Morganite Incorporated
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.