Granted Patent
Utility
US 4,663,002 · App. 06/759,715
Electrolytic process for manufacturing potassium peroxydiphosphate
Inventors:
John S. C. Chiang, Michael Joseph McCarthy
Patented Case
View Patent ↗
Granted: May 5, 1987
Filed: Jul 29, 1985
Inventors
John S. C. Chiang
Michael Joseph McCarthy
Assignee (at issue)
FMC 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.