Granted Patent
Utility
US 5,321,027 · App. 08/023,474
Substituted N-benzoyl-N'-(2-phenylethyl)-piperazines
Inventors:
Pier G. Ferrini, Peter Burckhardt
Patented Case
View Patent ↗
Granted: Jun 14, 1994
Filed: Feb 22, 1993
Inventors
Pier G. Ferrini
Peter Burckhardt
Assignee (at issue)
Ciba-Geigy
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.