Granted Patent
Utility
US 5,817,043 · App. 08/771,246
Flow-through treatment device
Inventor:
David S. Utterberg
Patented Case
View Patent ↗
Granted: Oct 6, 1998
Filed: Dec 20, 1996
Inventor
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.