Granted Patent
Utility
US 5,813,846 · App. 08/832,570
Low NOx flat flame burner
Inventors:
John N. Newby, Robert A. Shannon, Keith J. Nieszczur
Patented Case
View Patent ↗
Granted: Sep 29, 1998
Filed: Apr 2, 1997
Inventors
John N. Newby
Robert A. Shannon
Keith J. Nieszczur
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.