Granted Patent
Utility
US 5,582,722 · App. 08/357,284
Continuous self-cleaning filtration unit
Inventors:
Anthony M. Wachinski, Yongming Xia, Jaime Bengoechea
Patented Case
View Patent ↗
Granted: Dec 10, 1996
Filed: Dec 13, 1994
Inventors
Anthony M. Wachinski
Yongming Xia
Jaime Bengoechea
Assignee (at issue)
Ashbrook Simon-Hartley, LP
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.