Granted Patent
Utility
US 6,024,125 · App. 09/189,017
Rotary valve
Inventor:
Hans D. Baumann
Patented Case
View Patent ↗
Granted: Feb 15, 2000
Filed: Nov 9, 1998
Inventor
Hans D. Baumann
Assignee (at issue)
Fisher Controls International LLC
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.