Granted Patent
Utility
US 5,240,499 · App. 07/808,520
Surfactant triazine compounds and their use
Inventors:
Rainer Az, Wolfgang Schwab, Dieter Schnaitmann, Erwin Dietz
Patented Case
View Patent ↗
Granted: Aug 31, 1993
Filed: Dec 13, 1991
Inventors
Rainer Az
Wolfgang Schwab
Dieter Schnaitmann
Erwin Dietz
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.