Granted Patent
Utility
US 4,706,888 · App. 06/884,437
Multi-purpose nozzle assembly
Inventor:
Douglas B. Dobbs
Patented Case
View Patent ↗
Granted: Nov 17, 1987
Filed: Jul 11, 1986
Inventor
Douglas B. Dobbs
Assignee (at issue)
Calmar Holdings LLC
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.