Granted Patent
Utility
US 4,872,074 · App. 07/326,166
Data transducer position control system for rotating disk data storage equipment
Inventors:
David A. Brown, Donald V. Daniels, Joel N. Harrison
Patented Case
View Patent ↗
Granted: Oct 3, 1989
Filed: Mar 20, 1989
Inventors
David A. Brown
Donald V. Daniels
Joel N. Harrison
Assignee (at issue)
Quantum 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.