Granted Patent
Utility
US 5,197,710 · App. 07/707,584
Crash proof solenoid controlled valve for natural gas powered vehicles
Inventors:
Lloyd G. Wass, Peter Nelson
Patented Case
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Granted: Mar 30, 1993
Filed: May 30, 1991
Inventors
Lloyd G. Wass
Peter Nelson
Assignee (at issue)
Lloyd Wass
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.