Granted Patent
Utility
US 5,264,126 · App. 07/944,773
Clarifier drive for waste water treatment system
Inventor:
Robert Shurtleff
Patented Case
View Patent ↗
Granted: Nov 23, 1993
Filed: Sep 14, 1992
Inventor
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.