Granted Patent
Utility
US 6,723,850 · App. 09/743,373
Process for the synthesis of (1-H)-benzo[c]quinolizin-3-ones derivatives
Inventors:
Antonio Guarna, Mario Serio, Ernesto Giovanni Occhiato
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: May 25, 2001
Inventors
Antonio Guarna
Mario Serio
Ernesto Giovanni Occhiato
Assignee (at issue)
APPLIED RESEARCH SYSTEMS ARS HOLDING N.V.
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.