Granted Patent
Utility
US 4,249,187 · App. 05/899,409
Ink jet printer with deflected nozzles
Inventors:
Rolf B. Erikson, Edward H. Zemke, Kenneth L. Guenther
Patented Case
View Patent ↗
Granted: Feb 3, 1981
Filed: Apr 24, 1978
Inventors
Rolf B. Erikson
Edward H. Zemke
Kenneth L. Guenther
Assignee (at issue)
Bell and Howell, 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.