Granted Patent
Utility
US 4,230,444 · App. 05/897,761
Method and apparatus for fuel ignition system including complete cycling of flame relay prior to trial for ignition
Inventor:
Russell B. Matthews
Patented Case
View Patent ↗
Granted: Oct 28, 1980
Filed: Apr 17, 1978
Inventor
Russell B. Matthews
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.