Granted Patent
Utility
US 4,839,754 · App. 07/019,543
Winchester disk drive motor circuitry
Inventors:
Bipin V. Gami, Ericson M. Dunstan
Patented Case
View Patent ↗
Granted: Jun 13, 1989
Filed: Feb 26, 1987
Inventors
Bipin V. Gami
Ericson M. Dunstan
Assignee (at issue)
Micropolis Corporation
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.