Granted Patent
Utility
US 5,725,157 · App. 08/523,952
Injector nozzle valve
Inventor:
Frank DeLuca
Patented Case
View Patent ↗
Granted: Mar 10, 1998
Filed: Sep 6, 1995
Inventor
Frank DeLuca
Assignee (at issue)
Buescher, Alfred J.
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.