Granted Patent
Utility
US 6,216,242 · App. 09/226,780
Multiple-track magneto-resistive certification and thermal asperity test head
Inventor:
Mark J. Schaenzer
Patented Case
View Patent ↗
Granted: Apr 10, 2001
Filed: Jan 6, 1999
Inventor
Mark J. Schaenzer
Assignee (at issue)
Seagate Technology LLC
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.