Granted Patent
Utility
US 6,318,407 · App. 09/466,135
Pressure regulator with gauge
Inventors:
Gabriel Kohn, Kevin Kroupa, Charles Michaely, David L. Boger
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Dec 21, 1999
Inventors
Gabriel Kohn
Kevin Kroupa
Charles Michaely
David L. Boger
Assignee (at issue)
Allied Healthcare Products, 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.