Granted Patent
Utility
US 6,132,176 · App. 09/228,012
Flow control sensor and method for filling of a filter press
Inventor:
David M. Higgins
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Jan 8, 1999
Inventor
David M. Higgins
Assignee (at issue)
United States Filter Corporation
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.