Granted Patent
Utility
US 5,254,373 · App. 08/047,497
Process of making thin film magnetic head
Inventor:
Ronald A. Barr
Patented Case
View Patent ↗
Granted: Oct 19, 1993
Filed: Apr 19, 1993
Inventor
Ronald A. Barr
Assignee (at issue)
Read Rite 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.