Granted Patent
Utility
US 6,034,837 · App. 08/828,607
Disk drive zoned sequential data format and head switch sequence
Inventor:
John C. Purkett
Patented Case
View Patent ↗
Granted: Mar 7, 2000
Filed: Mar 31, 1997
Inventor
John C. Purkett
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.