Granted Patent
Utility
US 6,578,560 · App. 09/991,963
Gas injection system, particularly of methane, for internal combustion engines, and pressure regulating valve comprised in said system
Inventor:
Mario Ricco
Patented Case
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Granted: Jun 17, 2003
Filed: Nov 26, 2001
Inventor
Mario Ricco
Assignee (at issue)
C.R.F. SOCIETA' CONSORTILE PER AZIONI
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.