Granted Patent
Utility
US 4,904,372 · App. 07/273,266
Process and apparatus for recovering heat energy from catalyst regenerator flue gases
Inventor:
Alan R. Goelzer
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Nov 18, 1988
Inventor
Alan R. Goelzer
Assignee (at issue)
Stone & Webster Engineering Corp.
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.