Granted Patent
Utility
US 4,345,508 · App. 06/230,969
Control system for sequentially actuating fluid actuators
Inventor:
Alan R. Coutant
Patented Case
View Patent ↗
Granted: Aug 24, 1982
Filed: Jun 2, 1980
Inventor
Alan R. Coutant
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.