Granted Patent
Utility
US 5,198,516 · App. 07/730,537
Thermally stable bisimido/p-allylaniline copolymers
Inventors:
Yves Camberlin, Rene Dien, Philippe Michaud
Patented Case
View Patent ↗
Granted: Mar 30, 1993
Filed: Jul 16, 1991
Inventors
Yves Camberlin
Rene Dien
Philippe Michaud
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.