Granted Patent
Utility
US 4,257,051 · App. 05/965,853
Apparatus and method for driving a magnetic print head
Inventors:
Donald S. Lindsay, Charles J. Menk, John A. Popelish
Patented Case
View Patent ↗
Granted: Mar 17, 1981
Filed: Dec 4, 1978
Inventors
Donald S. Lindsay
Charles J. Menk
John A. Popelish
Assignee (at issue)
General Electric 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.