Granted Patent
Utility
US 4,550,326 · App. 06/490,753
Fluidic tuning of impulse jet devices using passive orifices
Inventors:
Ross R. Allen, Daniel Allen
Patented Case
View Patent ↗
Granted: Oct 29, 1985
Filed: May 2, 1983
Inventors
Ross R. Allen
Daniel Allen
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.