Granted Patent
Utility
US 6,052,257 · App. 09/167,955
Sealing structure for reduced lubricant leakage in a spindle motor
Inventors:
Mortiz Branger, Jose Galvan, Josef Hilmer
Patented Case
View Patent ↗
Granted: Apr 18, 2000
Filed: Oct 6, 1998
Inventors
Mortiz Branger
Jose Galvan
Josef Hilmer
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.