Granted Patent
Utility
US 5,554,021 · App. 08/309,205
Ultra low nox burner
Inventors:
Thomas F. Robertson, Todd A. Miller, Dennis E. Quinn
Patented Case
View Patent ↗
Granted: Sep 10, 1996
Filed: Sep 20, 1994
Inventors
Thomas F. Robertson
Todd A. Miller
Dennis E. Quinn
Assignee (at issue)
North American Manufacturing Corporation
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.