Granted Patent
Utility
US 4,623,841 · App. 06/718,040
Method and apparatus for measuring magnetic properties of magnetic materials using positive and negative magnetic saturation of the materials
Inventors:
Michael Keith Stinson, William L. HINES, David J. Hesser
Patented Case
View Patent ↗
Granted: Nov 18, 1986
Filed: Mar 29, 1985
Inventors
Michael Keith Stinson
William L. HINES
David J. Hesser
Assignee (at issue)
Motorola, Inc.
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.