Granted Patent
Utility
US 5,859,739 · App. 08/640,530
Magnetic data reading apparatus and method using inductive and magnetoresistive heads
Inventors:
Earl A. Cunningham, Jodie A. Christner
Patented Case
View Patent ↗
Granted: Jan 12, 1999
Filed: May 1, 1996
Inventors
Earl A. Cunningham
Jodie A. Christner
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.