Granted Patent
Utility
US 4,376,539 · App. 06/382,707
Head gasket assembly for diesel engines
Inventor:
John W. Baldacci
Patented Case
View Patent ↗
Granted: Mar 15, 1983
Filed: May 27, 1982
Inventor
John W. Baldacci
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.