Granted Patent
Utility
US 5,496,916 · App. 08/237,272
Process for oxidizing polyarylene compounds containing thioether groups
Inventors:
Dietrich Fleischer, Heinz Strutz, Ju/ rgen Kulpe, Andreas Schleicher
Patented Case
View Patent ↗
Granted: Mar 5, 1996
Filed: May 3, 1994
Inventors
Dietrich Fleischer
Heinz Strutz
Ju/ rgen Kulpe
Andreas Schleicher
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.