Granted Patent
Utility
US 4,937,589 · App. 07/397,214
Continuous ink jet print heads
Inventors:
Randy L. Fagerquist, Wendell L. Wood
Patented Case
View Patent ↗
Granted: Jun 26, 1990
Filed: Aug 23, 1989
Inventors
Randy L. Fagerquist
Wendell L. Wood
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.