Granted Patent
Utility
US 4,829,319 · App. 07/120,298
Plastic orifice plate for an ink jet printhead and method of manufacture
Inventors:
C. S. Chan, Wesley Meyer, Kenneth E. Trueba
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: Nov 13, 1987
Inventors
C. S. Chan
Wesley Meyer
Kenneth E. Trueba
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.