Granted Patent
Utility
US 4,935,825 · App. 07/285,808
Cylinder defect management system for data storage system
Inventors:
Devon Worrell, William C. Caldwell, Paul W. Hanmann, Robert W. Visser, Paul R. Nitza
Patented Case
View Patent ↗
Granted: Jun 19, 1990
Filed: Dec 16, 1988
Inventors
Devon Worrell
William C. Caldwell
Paul W. Hanmann
Robert W. Visser
Paul R. Nitza
Assignee (at issue)
EMULEX 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.