Granted Patent
Utility
US 6,638,446 · App. 10/271,375
Lower reactivity blends of calcium hypochlorite and magnesium sulfate
Inventor:
Richard M. Mullins
Patented Case
View Patent ↗
Granted: Oct 28, 2003
Filed: Oct 15, 2002
Inventor
Richard M. Mullins
Assignee (at issue)
Arch Chemicals, 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.