Granted Patent
Utility
US 6,454,104 · App. 09/866,071
Clarifier with influent well scum removal
Inventors:
Elena Bailey, Robert Shurtleff
Patented Case
View Patent ↗
Granted: Sep 24, 2002
Filed: May 23, 2001
Inventors
Elena Bailey
Robert Shurtleff
Assignee (at issue)
Enviroquip Inc.
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.