Granted Patent
Utility
US 4,300,493 · App. 05/925,755
Engine balancer for a four cylinder in-line internal combustion engine
Inventor:
Jerome L. Berti
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: Jul 18, 1978
Inventor
Jerome L. Berti
Assignee (at issue)
Allis-Chalmers Corporation
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.