Granted Patent
Utility
US 5,941,272 · App. 08/767,106
Three way universal valve
Inventor:
Robert M. Feldman
Patented Case
View Patent ↗
Granted: Aug 24, 1999
Filed: Dec 4, 1996
Inventor
Robert M. Feldman
Assignee (at issue)
Imaginair, 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.