Granted Patent
Utility
US 4,267,965 · App. 05/941,963
Oil burner control system with flue damper adapter circuit
Inventor:
William F. Everett
Patented Case
View Patent ↗
Granted: May 19, 1981
Filed: Sep 13, 1978
Inventor
William F. Everett
Assignee (at issue)
Johnson Controls, 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.