Granted Patent
Utility
US 4,430,846 · App. 06/339,483
Electrohydraulic drive and control
Inventors:
Glen T. Presley, Lloyd L. Lautzenhiser
Patented Case
View Patent ↗
Granted: Feb 14, 1984
Filed: Jan 15, 1982
Inventors
Glen T. Presley
Lloyd L. Lautzenhiser
Assignee (at issue)
Electro-Hydraulic Controls, 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.