Granted Patent
Utility
US 4,195,473 · App. 05/836,355
Gas turbine engine with stepped inlet compressor
Inventor:
Robert H. Aspinwall
Patented Case
View Patent ↗
Granted: Apr 1, 1980
Filed: Sep 26, 1977
Inventor
Robert H. Aspinwall
Assignee (at issue)
General Motors LLC
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.