Granted Patent
Utility
US 5,563,280 · App. 08/279,579
4-Phenoxycoumarins as herbicidal agents
Inventors:
Sergio I. Alvarado, Pierre A. Marc, Brian J. Dahlke, Eileen M. Reilly
Patented Case
View Patent ↗
Granted: Oct 8, 1996
Filed: Jul 25, 1994
Inventors
Sergio I. Alvarado
Pierre A. Marc
Brian J. Dahlke
Eileen M. Reilly
Assignee (at issue)
American Cyanamid 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.