Granted Patent
Utility
US 6,550,368 · App. 10/039,548
Fluid power interlock system
Inventors:
Gerard William Leeman, Frank J. Langro
Patented Case
View Patent ↗
Granted: Apr 22, 2003
Filed: Oct 25, 2001
Inventors
Gerard William Leeman
Frank J. Langro
Assignee (at issue)
FESTO AG & 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.