Granted Patent
Utility
US 4,938,885 · App. 07/413,669
Antioxidant dispersant polymer dendrimer
Inventor:
Cyril A. Migdal
Patented Case
View Patent ↗
Granted: Jul 3, 1990
Filed: Sep 28, 1989
Inventor
Cyril A. Migdal
Assignee (at issue)
Texaco 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.