Granted Patent
Utility
US 4,500,895 · App. 06/490,754
Disposable ink jet head
Inventors:
Roy T. Buck, Frank L. Cloutier, R. Ernst Erni, Robert N. Low, F. Duncan Terry
Patented Case
View Patent ↗
Granted: Feb 19, 1985
Filed: May 2, 1983
Inventors
Roy T. Buck
Frank L. Cloutier
R. Ernst Erni
Robert N. Low
F. Duncan Terry
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.