Granted Patent
Utility
US 4,529,803 · App. 06/227,830
Process for preparing imidazolinium compounds
Inventors:
Donald A. Tomalia, Fredric L. Buchholz
Patented Case
View Patent ↗
Granted: Jul 16, 1985
Filed: Jan 23, 1981
Inventors
Donald A. Tomalia
Fredric L. Buchholz
Assignee (at issue)
THE DOW 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.