Granted Patent
Utility
US 6,335,840 · App. 09/188,836
Thermal asperity pointer for servo sector
Inventor:
Daniel James Malone, Sr.
Patented Case
View Patent ↗
Granted: Jan 1, 2002
Filed: Nov 9, 1998
Inventor
Daniel James Malone, Sr.
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.