Granted Patent
Utility
US 5,369,535 · App. 07/858,390
Fixed block architecture disk file with improved position identification and error handling
Inventor:
Steven R. Hetzler
Patented Case
View Patent ↗
Granted: Nov 29, 1994
Filed: Mar 25, 1992
Inventor
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.