Granted Patent
Utility
US 4,270,778 · App. 06/035,864
Tube connector with security means
Inventor:
Richard G. Brownell
Patented Case
View Patent ↗
Granted: Jun 2, 1981
Filed: May 3, 1979
Inventor
Richard G. Brownell
Assignee (at issue)
Sherwood Medical Industries 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.