Granted Patent
Utility
US 4,583,660 · App. 06/423,892
Vibratory toner dispensing system
Inventors:
Marcus A. La Barre, Jeffrey L. Trask, Roger Archibald
Patented Case
View Patent ↗
Granted: Apr 22, 1986
Filed: Sep 27, 1982
Inventors
Marcus A. La Barre
Jeffrey L. Trask
Roger Archibald
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.