Granted Patent
Utility
US 5,041,922 · App. 07/555,811
Magnetic recording medium having magnetic storage and saturable layers, and apparatus and method using the medium
Inventors:
Roger William Wood, Beverley R. Gooch, Rex Niedermeyer
Patented Case
View Patent ↗
Granted: Aug 20, 1991
Filed: Jul 23, 1990
Inventors
Roger William Wood
Beverley R. Gooch
Rex Niedermeyer
Assignee (at issue)
Ampex 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.