Granted Patent
Utility
US 4,301,014 · App. 06/156,539
Phosphorus pentasulfide waste water treatment
Inventors:
Harry E. Buckholtz, Joseph J. Moritz, Joseph S. Wisnouskas
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: Jun 5, 1980
Inventors
Harry E. Buckholtz
Joseph J. Moritz
Joseph S. Wisnouskas
Assignee (at issue)
Hooker Chemicals & Plastics 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.