Granted Patent
Utility
US 5,416,411 · App. 08/002,173
System and method for measuring the thickness of a ferromagnetic layer
Inventor:
Dirk A. Elsmore
Patented Case
View Patent ↗
Granted: May 16, 1995
Filed: Jan 8, 1993
Inventor
Dirk A. Elsmore
Assignee (at issue)
Lockheed Fort Worth Company
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.