Granted Patent
Utility
US 4,616,276 · App. 06/755,527
Disk file servo control system with fast reduction of repeatable head position error
Inventor:
Michael L. Workman
Patented Case
View Patent ↗
Granted: Oct 7, 1986
Filed: Jul 16, 1985
Inventor
Michael L. Workman
Assignee (at issue)
International Business Machines 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.