Granted Patent
Utility
US 4,552,945 · App. 06/683,457
Polyamide-polyurea polymers by the RIM process
Inventors:
Louis M. Alberino, Dale F. Regelman, Nancy P. Vespoli
Patented Case
View Patent ↗
Granted: Nov 12, 1985
Filed: Dec 19, 1984
Inventors
Louis M. Alberino
Dale F. Regelman
Nancy P. Vespoli
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.