Granted Patent
Utility
US 4,416,864 · App. 06/429,754
Process for calcium hypochlorite
Inventor:
John A. Wojtowicz
Patented Case
View Patent ↗
Granted: Nov 22, 1983
Filed: Sep 30, 1982
Inventor
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.