Granted Patent
Utility
US 4,739,062 · App. 06/879,474
Method of producing paraquinones
Inventors:
Franca Bigi, Giovanni Casiraghi, Giuseppe Casnati, Giovanni Sartori
Patented Case
View Patent ↗
Granted: Apr 19, 1988
Filed: Jun 27, 1986
Inventors
Franca Bigi
Giovanni Casiraghi
Giuseppe Casnati
Giovanni Sartori
Assignee (at issue)
CONSIGLIO NAZIONALE DELLE RICERCHE
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.