Granted Patent
Utility
US 5,616,694 · App. 08/495,418
Azo compound
Inventors:
Ronald Wynford Kenyon, Prahalad Manibhai Mistry
Patented Case
View Patent ↗
Granted: Apr 1, 1997
Filed: Jul 12, 1995
Inventors
Ronald Wynford Kenyon
Prahalad Manibhai Mistry
Assignee (at issue)
Zeneca Limited
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.