Granted Patent
Utility
US 6,666,839 · App. 10/313,695
Method of using reusable blood lines
Inventors:
David S. Utterberg, Neil J. Sheehan
Patented Case
View Patent ↗
Granted: Dec 23, 2003
Filed: Dec 6, 2002
Inventors
David S. Utterberg
Neil J. Sheehan
Assignee (at issue)
DSU Medical Corp.
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.