Granted Patent
Utility
US 5,218,822 · App. 07/821,481
Air start/assist for turbochargers
Inventor:
David W. Legg
Patented Case
View Patent ↗
Granted: Jun 15, 1993
Filed: Jan 15, 1992
Inventor
David W. Legg
Assignee (at issue)
Cooper Industries Holdings
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.