Granted Patent
Utility
US 4,627,039 · App. 06/564,656
Head positioning servo system for optical recording with coarse and fine control
Inventor:
Russell Meyer
Patented Case
View Patent ↗
Granted: Dec 2, 1986
Filed: Dec 23, 1983
Inventor
Russell Meyer
Assignee (at issue)
Magnetic Peripherals, Inc.
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.