Granted Patent
Utility
US 6,673,250 · App. 10/175,095
Radio frequency identification system for a fluid treatment system
Inventors:
Roy W. Kuennen, David W. Baarman, Scott A. Mollema, Ronald C. Markham, Terry L. Lautzenheiser
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Jun 18, 2002
Inventors
Roy W. Kuennen
David W. Baarman
Scott A. Mollema
Ronald C. Markham
Terry L. Lautzenheiser
Assignee (at issue)
Access Business Group International LLC
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.