Granted Patent
Utility
US 4,396,959 · App. 06/190,198
Data transducer position control system for rotating disk data storage equipment
Inventors:
Joel N. Harrison, Donald V. Daniels, David A. Brown
Patented Case
View Patent ↗
Granted: Aug 2, 1983
Filed: Sep 24, 1980
Inventors
Joel N. Harrison
Donald V. Daniels
David A. Brown
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.