Granted Patent
Utility
US 5,637,587 · App. 08/597,791
Synergy biocides for use in aqueous ore slurries
Inventors:
Anthony E. Gross, Nancy L. Casselman
Patented Case
View Patent ↗
Granted: Jun 10, 1997
Filed: Feb 7, 1996
Inventors
Anthony E. Gross
Nancy L. Casselman
Assignee (at issue)
Nalco Chemical 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.