Granted Patent
Utility
US 5,364,854 · App. 08/070,860
Derivatives of substituted imidazo benzoxazin-1-one and process for their preparation
Inventors:
Mario Varasi, Franco Heidempergher, Claudio Arrigoni, Carla Caccia
Patented Case
View Patent ↗
Granted: Nov 15, 1994
Filed: Jun 3, 1993
Inventors
Mario Varasi
Franco Heidempergher
Claudio Arrigoni
Carla Caccia
Assignee (at issue)
Farmitalia Carlo Erba S.r.l.
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.