Granted Patent
Utility
US 6,490,125 · App. 09/289,692
Thin film write head with improved yoke to pole stitch
Inventor:
Ronald A. Barr
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Apr 9, 1999
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.