Granted Patent
Utility
US 6,820,652 · App. 10/328,811
Multi-channel valve
Inventors:
Peter A. Gaydos, Theodore Robert Adams
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Dec 24, 2002
Inventors
Peter A. Gaydos
Theodore Robert Adams
Assignee (at issue)
Ventaira Pharmaceuticals, 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.