Granted Patent
Utility
US 6,414,142 · App. 08/973,936
Process for preparing potassium clavulanate
Inventors:
Paul Gerard Butterly, Gilroy John Keohane, Esin Kosal
Patented Case
View Patent ↗
Granted: Jul 2, 2002
Filed: Dec 8, 1997
Inventors
Paul Gerard Butterly
Gilroy John Keohane
Esin Kosal
Assignee (at issue)
SmithKline Beecham Limited
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.