Granted Patent
Utility
US 5,880,247 · App. 08/827,436
Phosphorus-containing dicarboxylic acid (anhydride)-modified epoxy resin
Inventors:
Sebastian Hörold, Hans-Jerg Kleiner
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: Mar 27, 1997
Inventors
Sebastian Hörold
Hans-Jerg Kleiner
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.