Granted Patent
Utility
US 5,980,741 · App. 09/203,013
Bubble trap with flat side having multipurpose supplemental ports
Inventors:
William J. Schnell, David S. Utterberg
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Dec 1, 1998
Inventors
William J. Schnell
David S. Utterberg
Assignee (at issue)
Medisystems Technology Corporation
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.