Granted Patent
Utility
US 4,845,816 · App. 07/244,529
Burnishing head for memory disk drive
Inventor:
Leonard Nanis
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Sep 12, 1988
Inventor
Leonard Nanis
Assignee (at issue)
XEBEC, Inc.
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.