Granted Patent
Utility
US 4,408,983 · App. 06/222,753
Recuperative burners
Inventors:
Jeffrey B. Masters, Manjit S. Saimbi, Roger J. Webb
Patented Case
View Patent ↗
Granted: Oct 11, 1983
Filed: Jan 5, 1981
Inventors
Jeffrey B. Masters
Manjit S. Saimbi
Roger J. Webb
Assignee (at issue)
British Gas
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.