Granted Patent
Utility
US 4,189,246 · App. 05/863,450
Variable print-hammer control for on-the-fly-printing
Inventors:
Milburn H. Kane, Norman F. Barrow
Patented Case
View Patent ↗
Granted: Feb 19, 1980
Filed: Dec 22, 1977
Inventors
Milburn H. Kane
Norman F. Barrow
Assignee (at issue)
International Business Machines 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.