Granted Patent
Utility
US 5,500,848 · App. 08/082,826
Sector servo data recording disk having data regions without identification (ID) fields
Inventors:
John S. Best, Steven R. Hetzler
Patented Case
View Patent ↗
Granted: Mar 19, 1996
Filed: Jun 23, 1993
Inventors
John S. Best
Steven R. Hetzler
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.