Granted Patent
Utility
US 5,654,471 · App. 08/552,238
Process for the preparation of 4-hydroxyphenyl benzoate derivatives
Inventors:
Ingo Zahn, Norman Haeberle, Peter Weitzel
Patented Case
View Patent ↗
Granted: Aug 5, 1997
Filed: Nov 2, 1995
Inventors
Ingo Zahn
Norman Haeberle
Peter Weitzel
Assignee (at issue)
Consortium für elektrochemische Industrie 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.