Granted Patent
Utility
US 4,532,802 · App. 06/615,638
Apparatus for analyzing the interface between a recording disk and a read-write head
Inventors:
Celia E. Yeack-Scranton, Siegfried F. Vogel
Patented Case
View Patent ↗
Granted: Aug 6, 1985
Filed: May 31, 1984
Inventors
Celia E. Yeack-Scranton
Siegfried F. Vogel
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.