Granted Patent
Utility
US 4,520,739 · App. 06/555,462
Nozzle tip for pulverized coal burner
Inventors:
Michael S. McCartney, Roman Chadshay, Richard F. Erlacher
Patented Case
View Patent ↗
Granted: Jun 4, 1985
Filed: Sep 13, 1982
Inventors
Michael S. McCartney
Roman Chadshay
Richard F. Erlacher
Assignee (at issue)
Combustion Engineering, 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.