Granted Patent
Utility
US 4,808,740 · App. 07/147,389
So-called advanced epoxide resins based on cyclohex-1-ylmethylenediphenol derivatives or bicyclo(2.2.1)hept-1-ylmethylenediphenol derivatives
Inventors:
Martin Roth, Charles E. Monnier
Patented Case
View Patent ↗
Granted: Feb 28, 1989
Filed: Jan 25, 1988
Inventors
Martin Roth
Charles E. Monnier
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.