Granted Patent
Utility
US 4,659,779 · App. 06/847,371
Solid solution of amine and polymerized phenol as epoxy resin cure accelerator
Inventors:
Madan M. Bagga, Christopher Bull
Patented Case
View Patent ↗
Granted: Apr 21, 1987
Filed: Apr 2, 1986
Inventors
Madan M. Bagga
Christopher Bull
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.