Granted Patent
Utility
US 4,438,191 · App. 06/443,971
Monolithic ink jet print head
Inventors:
Frank L. Cloutier, Robert N. Low, Paul H. McClelland
Patented Case
View Patent ↗
Granted: Mar 20, 1984
Filed: Nov 23, 1982
Inventors
Frank L. Cloutier
Robert N. Low
Paul H. McClelland
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.