Granted Patent
Utility
US 5,112,521 · App. 07/661,380
Calcium hypochlorite compositions containing phosphonobutane polycarboxylic acid salts
Inventors:
Richard M. Mullins, Richard Bryan Wood, John A. Wojtowicz
Patented Case
View Patent ↗
Granted: May 12, 1992
Filed: Feb 25, 1991
Inventors
Richard M. Mullins
Richard Bryan Wood
John A. Wojtowicz
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.