Granted Patent
Utility
US 5,318,762 · App. 07/988,060
Process for treating aqueous solutions of hydroxylamine salts containing excess acid
Inventors:
David W. Cawlfield, Donald B. Loftis, Sanders H. Moore, Elizabeth K. Walter
Patented Case
View Patent ↗
Granted: Jun 7, 1994
Filed: Dec 9, 1992
Inventors
David W. Cawlfield
Donald B. Loftis
Sanders H. Moore
Elizabeth K. Walter
Assignee (at issue)
Olin 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.