Granted Patent
Utility
US 6,815,850 · App. 09/902,310
Flux leakage barrier in fluid bearing for disk drive
Inventors:
David W. Albrecht, Chen-Hsiung Lee
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Jul 10, 2001
Inventors
David W. Albrecht
Chen-Hsiung Lee
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.