Granted Patent
Utility
US 5,574,187 · App. 08/318,927
Process of preparing para substituted phenylamines
Inventors:
Russell E. Malz, Jr., Gerard V. Smith, Mark P. Ferrandino, Ruozhi Song, Chung-Yuan Lin, Franklin H. Barrows
Patented Case
View Patent ↗
Granted: Nov 12, 1996
Filed: Oct 6, 1994
Inventors
Russell E. Malz, Jr.
Gerard V. Smith
Mark P. Ferrandino
Ruozhi Song
Chung-Yuan Lin
Franklin H. Barrows
Assignee (at issue)
Uniroyal Chemical Company, Inc.
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.