Granted Patent
Utility
US 5,552,409 · App. 08/221,229
Dihydropyridazinones, pyridazinones and related compounds as fungicides
Inventors:
Enrique Luis Michelotti, Anne Ritchie Egan, Ronald Ross, Jr., Willie Joe Wilson
Patented Case
View Patent ↗
Granted: Sep 3, 1996
Filed: Mar 31, 1994
Inventors
Enrique Luis Michelotti
Anne Ritchie Egan
Ronald Ross, Jr.
Willie Joe Wilson
Assignee (at issue)
Rohm and Haas 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.