Granted Patent
Utility
US 4,922,708 · App. 07/305,163
Starting system for turbine engines
Inventor:
Charles Nelson
Patented Case
View Patent ↗
Granted: May 8, 1990
Filed: Feb 2, 1989
Inventor
Charles Nelson
Assignee (at issue)
WILLIAMS INTERNATIONAL CO., L.L.C.
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.