Granted Patent
Utility
US 6,179,978 · App. 09/249,831
Mandrel for forming a nozzle plate having a non-wetting surface of uniform thickness and an orifice wall of tapered contour, and method of making the mandrel
Inventors:
Jeffrey I. Hirsh, Edwin A. Mycek, Larry L. Lapa
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Feb 12, 1999
Inventors
Jeffrey I. Hirsh
Edwin A. Mycek
Larry L. Lapa
Assignee (at issue)
EASTMAN KODAK COMPANY
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.