Granted Patent
Utility
US 5,872,283 · App. 08/883,267
Process for decarboxylation of halogenated aromatic carboxylic acids
Inventors:
Stefan Antons, Guido Steffan, Helmut Fiege
Patented Case
View Patent ↗
Granted: Feb 16, 1999
Filed: Jun 26, 1997
Inventors
Stefan Antons
Guido Steffan
Helmut Fiege
Assignee (at issue)
Bayer Aktiengesellschaft
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.