Granted Patent
Utility
US 5,590,731 · App. 08/435,601
Hydraulic control system providing proportional movement to an attachment of a power machine
Inventor:
Scott B. Jacobson
Patented Case
View Patent ↗
Granted: Jan 7, 1997
Filed: May 5, 1995
Inventor
Scott B. Jacobson
Assignee (at issue)
CLARK EQUIPMENT COMPANY
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.