Granted Patent
Utility
US 4,418,228 · App. 06/370,733
Process for ring bromination of nitrobenzene
Inventors:
James J. Harrison, John P. Pellegrini, Jr., Charles M. Selwitz
Patented Case
View Patent ↗
Granted: Nov 29, 1983
Filed: Apr 22, 1982
Inventors
James J. Harrison
John P. Pellegrini, Jr.
Charles M. Selwitz
Assignee (at issue)
Gulf Research & Development Company
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.