Granted Patent
Utility
US 4,301,657 · App. 06/035,595
Gas turbine combustion chamber
Inventor:
Robert Noel Penny
Patented Case
View Patent ↗
Granted: Nov 24, 1981
Filed: May 3, 1979
Inventor
Robert Noel Penny
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.