Granted Patent
Utility
US 6,003,793 · App. 08/577,610
Boundary layer coal nozzle assembly for steam generation apparatus
Inventor:
Jeffrey S. Mann
Patented Case
View Patent ↗
Granted: Dec 21, 1999
Filed: Dec 22, 1995
Inventor
Jeffrey S. Mann
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.