Granted Patent
Utility
US 5,542,840 · App. 08/538,621
Burner for combusting gas and/or liquid fuel with low NO.sub.x production
Inventors:
David J. Surbey, James L. Smith, Richard C. Allen, Alan D. Witwer
Patented Case
View Patent ↗
Granted: Aug 6, 1996
Filed: Oct 4, 1995
Inventors
David J. Surbey
James L. Smith
Richard C. Allen
Alan D. Witwer
Assignee (at issue)
ZEECO, 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.