Granted Patent
Utility
US 5,666,237 · App. 08/678,387
Method for mapping thermal asperities of a magnetic recording surface in data storage device
Inventor:
William D. Lewis
Patented Case
View Patent ↗
Granted: Sep 9, 1997
Filed: Jun 28, 1996
Inventor
William D. Lewis
Assignee (at issue)
Quantum 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.