Granted Patent
Utility
US 6,206,860 · App. 09/041,566
Spikeless connection and drip chamber with valve
Inventor:
Frank M. Richmond
Patented Case
View Patent ↗
Granted: Mar 27, 2001
Filed: Mar 12, 1998
Inventor
Frank M. Richmond
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.