Granted Patent
Utility
US 4,739,239 · App. 07/091,764
Bipolar motor control
Inventors:
James N. Krause, Brian Tremaine
Patented Case
View Patent ↗
Granted: Apr 19, 1988
Filed: Aug 3, 1987
Inventors
James N. Krause
Brian Tremaine
Assignee (at issue)
Seagate Technology 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.