Granted Patent
Utility
US 4,922,086 · App. 07/110,119
Write head apparatus for recognizing magnetic characters and method therefor
Inventor:
Richard E. Milford
Patented Case
View Patent ↗
Granted: May 1, 1990
Filed: Oct 19, 1987
Inventor
Richard E. Milford
Assignee (at issue)
BancTec, Incorporated
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.