Granted Patent
Utility
US 4,872,071 · App. 07/143,798
Method and apparatus for detecting abnormal operation of moving storage apparatus
Inventors:
Malcolm C. Easton, Peter B. P. Phipps
Patented Case
View Patent ↗
Granted: Oct 3, 1989
Filed: Jan 14, 1988
Inventors
Malcolm C. Easton
Peter B. P. Phipps
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.