Granted Patent
Utility
US 4,444,790 · App. 06/411,380
Quaternary ammonium disinfectants
Inventors:
Harold A. Green, Alfonso N. Petrocci, Zdzislaw W. Dudzinski
Patented Case
View Patent ↗
Granted: Apr 24, 1984
Filed: Aug 25, 1982
Inventors
Harold A. Green
Alfonso N. Petrocci
Zdzislaw W. Dudzinski
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.