Granted Patent
Utility
US 4,888,402 · App. 07/079,056
Copolymes formed from N-hydroxyphenylmaleinimide (derivatives) and allyl compounds
Inventors:
Martin Roth, Peter Flury, Sameer H. Eldin
Patented Case
View Patent ↗
Granted: Dec 19, 1989
Filed: Jul 29, 1987
Inventors
Martin Roth
Peter Flury
Sameer H. Eldin
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.