Granted Patent
Utility
US 5,722,354 · App. 08/569,285
Heat recovery steam generating apparatus
Inventor:
Donald M. Sansoucy
Patented Case
View Patent ↗
Granted: Mar 3, 1998
Filed: Dec 8, 1995
Inventor
Donald M. Sansoucy
Assignee (at issue)
D. B. Riley, Inc.
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.