Granted Patent
Utility
US 6,679,500 · App. 10/254,164
Coal pulverizer brush seal assembly
Inventors:
Donald G. Maurer, Peter Stanwicks
Patented Case
View Patent ↗
Granted: Jan 20, 2004
Filed: Sep 25, 2002
Inventors
Donald G. Maurer
Peter Stanwicks
Assignee (at issue)
ALSTOM (Switzerland) Ltd
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.