Granted Patent
Utility
US 5,313,795 · App. 07/992,436
Control system with tri-pressure selector network
Inventor:
Donnell L. Dunn
Patented Case
View Patent ↗
Granted: May 24, 1994
Filed: Dec 17, 1992
Inventor
Donnell L. Dunn
Assignee (at issue)
Case GmbH
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.