Granted Patent
Utility
US 5,904,669 · App. 08/736,968
Magnetic ball valve and control module
Inventors:
Robert M. Schildgen, James Peter Anderson
Patented Case
View Patent ↗
Granted: May 18, 1999
Filed: Oct 25, 1996
Inventors
Robert M. Schildgen
James Peter Anderson
Assignee (at issue)
FibraSonics 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.