Granted Patent
Utility
US 5,474,704 · App. 08/100,572
Regeneration compositions for cationic exchange resins
Inventor:
Najib H. Zaid
Patented Case
View Patent ↗
Granted: Dec 12, 1995
Filed: Jul 30, 1993
Inventor
Najib H. Zaid
Assignee (at issue)
JaCam Chemicals, LLC
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.