Granted Patent
Utility
US 5,339,775 · App. 08/176,928
Cooling arrangement for a piston assembly
Inventors:
John M. Clarke, Padmanabhan R. Ranganathan
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Jan 3, 1994
Inventors
John M. Clarke
Padmanabhan R. Ranganathan
Assignee (at issue)
Caterpillar Inc.
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.