Granted Patent
Utility
US 4,248,309 · App. 06/056,566
Fire extinguishing system utilizing the engine cooling system
Inventors:
Anatoli Hofle, Doyle V. Haren
Patented Case
View Patent ↗
Granted: Feb 3, 1981
Filed: Jul 11, 1979
Inventors
Anatoli Hofle
Doyle V. Haren
Assignee (at issue)
DayCo Holdings, LP
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.