Granted Patent
Utility
US 5,431,557 · App. 08/167,155
Low NOX gas combustion systems
Inventor:
Robert E. Hamos
Patented Case
View Patent ↗
Granted: Jul 11, 1995
Filed: Dec 16, 1993
Inventor
Robert E. Hamos
Assignee (at issue)
Teledyne Industries, 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.