Granted Patent
Utility
US 5,678,497 · App. 08/640,582
Apparatus for distributing secondary air into a large scale circulating fluidized bed
Inventor:
Stephen J. Goidich
Patented Case
View Patent ↗
Granted: Oct 21, 1997
Filed: Apr 30, 1996
Inventor
Stephen J. Goidich
Assignee (at issue)
Foster Wheeler Energy International, 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.