Granted Patent
Utility
US 5,643,940 · App. 08/432,374
Dioxapyrrolomycin as an antiparasitic agent and compositions useful therefor
Inventors:
George A. Conder, Ming Shang Kuo, Vincent P. Marshall, Raymond John Zielinski
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: May 1, 1995
Inventors
George A. Conder
Ming Shang Kuo
Vincent P. Marshall
Raymond John Zielinski
Assignee (at issue)
The Upjohn Co.
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.