Granted Patent
Utility
US 6,576,594 · App. 09/882,305
Water treatment process
Inventors:
Thomas J. Nier, Tosby L. Linn
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Jun 18, 2001
Inventors
Thomas J. Nier
Tosby L. Linn
Assignee (at issue)
Bay Chemical and Supply Company
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.