Granted Patent
Utility
US 6,776,174 · App. 10/141,971
Apparatus for washing magnetic particles
Inventors:
Paul E. Nisson, Michael Schuette, Wu Li
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: May 10, 2002
Inventors
Paul E. Nisson
Michael Schuette
Wu Li
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.