Granted Patent
Utility
US 6,264,757 · App. 09/121,109
Separating contaminants from continuous from surface cleansing solution during continuous strip steel processing
Inventors:
Brian Lester, Kenneth R. Olashuk
Patented Case
View Patent ↗
Granted: Jul 24, 2001
Filed: Jul 23, 1998
Inventors
Brian Lester
Kenneth R. Olashuk
Assignee (at issue)
Wierton Steel 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.