Granted Patent
Utility
US 4,400,000 · App. 06/368,564
Head gasket assembly for diesel engines
Inventor:
John C. Moerk, Jr.
Patented Case
View Patent ↗
Granted: Aug 23, 1983
Filed: Apr 15, 1982
Inventor
John C. Moerk, Jr.
Assignee (at issue)
Felt Products Mfg. Co.
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.