Granted Patent
Utility
US 5,435,278 · App. 08/270,277
Cylinder head and spark plug assembly and method of using the same
Inventor:
Larry Van Reatherford
Patented Case
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Granted: Jul 25, 1995
Filed: Jul 5, 1994
Inventor
Larry Van Reatherford
Assignee (at issue)
Ford Motor Company
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.