Granted Patent
Utility
US 4,746,459 · App. 07/004,761
Self-dispersing tin oxide sols
Inventor:
Morris Kaplan
Patented Case
View Patent ↗
Granted: May 24, 1988
Filed: Jan 9, 1987
Inventor
Morris Kaplan
Assignee (at issue)
Nalco Chemical Company
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.