Granted Patent
Utility
US 4,589,042 · App. 06/508,207
Composite thin film transducer head
Inventors:
Nathaniel C. Anderson, Robert E. Jones, Jr.
Patented Case
View Patent ↗
Granted: May 13, 1986
Filed: Jun 27, 1983
Inventors
Nathaniel C. Anderson
Robert E. Jones, Jr.
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.