Granted Patent
Utility
US 4,397,743 · App. 06/390,287
Water treatment method
Inventors:
Harold A. Green, John J. Merianos, Alfonso N. Petrocci
Patented Case
View Patent ↗
Granted: Aug 9, 1983
Filed: Jun 21, 1982
Inventors
Harold A. Green
John J. Merianos
Alfonso N. Petrocci
Assignee (at issue)
Millmaster Onyx Group, Inc.
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.