Granted Patent
Utility
US 5,206,308 · App. 07/664,436
Grafting of amine functional polymers onto functionalized oxymethylene polymers and the resulting graft polymers thereof
Inventors:
Andrew Auerbach, Jerry A. Broussard, Nan-Loh Yang, James L. Paul
Patented Case
View Patent ↗
Granted: Apr 27, 1993
Filed: Mar 4, 1991
Inventors
Andrew Auerbach
Jerry A. Broussard
Nan-Loh Yang
James L. Paul
Assignee (at issue)
Hoechst Celanese Corporation
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.