Granted Patent
Utility
US 5,190,067 · App. 07/804,811
Directional flow control
Inventors:
Joseph R. Paradis, Peter N. Kotsifas
Patented Case
View Patent ↗
Granted: Mar 2, 1993
Filed: Dec 9, 1991
Inventors
Joseph R. Paradis
Peter N. Kotsifas
Assignee (at issue)
Nypro 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.