Granted Patent
Utility
US 4,737,199 · App. 06/812,035
Machinable ductile or semiductile cast iron and method
Inventor:
Bela V. Kovacs
Patented Case
View Patent ↗
Granted: Apr 12, 1988
Filed: Dec 23, 1985
Inventor
Bela V. Kovacs
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.