Granted Patent
Utility
US 4,341,149 · App. 06/095,191
Selectively actuatable fluid control system for a work element
Inventor:
Joseph E. Dezelan
Patented Case
View Patent ↗
Granted: Jul 27, 1982
Filed: Aug 30, 1979
Inventor
Joseph E. Dezelan
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.