Granted Patent
Utility
US 4,456,220 · App. 06/268,969
Nozzle assembly for top operating rod
Inventors:
Gunter R. Behle, Joel A. Mingus
Patented Case
View Patent ↗
Granted: Jun 26, 1984
Filed: Jun 1, 1981
Inventors
Gunter R. Behle
Joel A. Mingus
Assignee (at issue)
ACF Industries Incorporated
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.