Granted Patent
Utility
US 4,247,048 · App. 06/024,788
Dispensing nozzle
Inventor:
Thomas H. Hayes
Patented Case
View Patent ↗
Granted: Jan 27, 1981
Filed: Mar 29, 1979
Inventor
Thomas H. Hayes
Assignee (at issue)
Ethyl Corporation
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.