Granted Patent
Utility
US 5,552,531 · App. 08/038,047
Process for preparing substituted aromatic azo compounds
Inventors:
Michael K. Stern, Brian K. Cheng
Patented Case
View Patent ↗
Granted: Sep 3, 1996
Filed: Apr 6, 1993
Inventors
Michael K. Stern
Brian K. Cheng
Assignee (at issue)
Monsanto 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.