Granted Patent
Utility
US 4,783,513 · App. 07/036,624
Novel water soluble cationic acrylamide polymers having relatively uniform cationic quaternary amine functional unit distribution
Inventors:
Jeffrey S. Cadel, Eric H. Larson
Patented Case
View Patent ↗
Granted: Nov 8, 1988
Filed: Apr 10, 1987
Inventors
Jeffrey S. Cadel
Eric H. Larson
Assignee (at issue)
AlliedSignal, 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.