Granted Patent
Utility
US 4,872,079 · App. 07/078,911
Thin film magnetic head with a leveler layer
Inventor:
Gary E. Roberts
Patented Case
View Patent ↗
Granted: Oct 3, 1989
Filed: Jul 28, 1987
Inventor
Gary E. Roberts
Assignee (at issue)
Applied Magnetics, 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.