Granted Patent
Utility
US 4,413,096 · App. 06/342,876
.alpha.-Olefin copolymers containing pendant hindered amine groups
Inventors:
Frank T. Fu, Roland A. E. Winter
Patented Case
View Patent ↗
Granted: Nov 1, 1983
Filed: Jan 26, 1982
Inventors
Frank T. Fu
Roland A. E. Winter
Assignee (at issue)
Ciba-Geigy
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.