Granted Patent
Utility
US 6,779,542 · App. 10/425,481
Low leak boom control check valve
Inventors:
George T. Fiala, David W. Swaim
Patented Case
View Patent ↗
Granted: Aug 24, 2004
Filed: Apr 29, 2003
Inventors
George T. Fiala
David W. Swaim
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.