Granted Patent
Utility
US 6,515,191 · App. 10/197,969
Synthesis of vicinal difluoro aromatics and intermediates thereof
Inventors:
Gauri Sankar Lal, Kathryn Sue Hayes
Patented Case
View Patent ↗
Granted: Feb 4, 2003
Filed: Jul 17, 2002
Inventors
Gauri Sankar Lal
Kathryn Sue Hayes
Assignee (at issue)
Air Products and Chemicals, Inc.
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.