Granted Patent
Utility
US 5,239,958 · App. 07/928,880
Delay stroke piston and rod for engine
Inventor:
Benjamin V. Booher
Patented Case
View Patent ↗
Granted: Aug 31, 1993
Filed: Aug 11, 1992
Inventor
Benjamin V. Booher
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.