Granted Patent
Utility
US 4,030,288 · App. 05/630,476
Modular gas turbine engine assembly
Inventors:
Warren W. Davis, David E. Keedy
Patented Case
View Patent ↗
Granted: Jun 21, 1977
Filed: Nov 10, 1975
Inventors
Warren W. Davis
David E. Keedy
Assignee (at issue)
Caterpillar Tractor Co.
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.