Granted Patent
Utility
US 4,530,141 · App. 06/549,130
Unitary removal of engine cylinder liner, piston and rod
Inventor:
Louis F. Vachon
Patented Case
View Patent ↗
Granted: Jul 23, 1985
Filed: Nov 7, 1983
Inventor
Louis F. Vachon
Assignee (at issue)
Caterpillar Tractor 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.