Granted Patent
Utility
US 4,972,336 · App. 06/542,100
Read while write magnetic head assembly
Inventors:
James Reid, Gary E. Roberts
Patented Case
View Patent ↗
Granted: Nov 20, 1990
Filed: Oct 14, 1983
Inventors
James Reid
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.