Granted Patent
Utility
US 6,299,776 · App. 08/996,380
Biochemical oxidation system and process
Inventors:
John R. McWhirter, James L. Stanton, Paul Kubera
Patented Case
View Patent ↗
Granted: Oct 9, 2001
Filed: Dec 23, 1997
Inventors
John R. McWhirter
James L. Stanton
Paul Kubera
Assignee (at issue)
Federal Signal 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.