Granted Patent
Utility
US 4,747,771 · App. 06/928,401
Operation of a pulse-fired burner
Inventors:
James H. Goodfellow, Trevor Ward
Patented Case
View Patent ↗
Granted: May 31, 1988
Filed: Nov 10, 1986
Inventors
James H. Goodfellow
Trevor Ward
Assignees (at issue)
BRITISH GAS PLC
Hotwork Developments Ltd.
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.