Granted Patent
Utility
US 5,830,973 · App. 08/824,991
Phosphorus-modified epoxy resins comprising epoxy resins and phosphorus-containing compounds
Inventors:
Sebastian Hörold, Hans-Peter Schmitz
Patented Case
View Patent ↗
Granted: Nov 3, 1998
Filed: Mar 27, 1997
Inventors
Sebastian Hörold
Hans-Peter Schmitz
Assignee (at issue)
Hoechst GmbH
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.