Granted Patent
Utility
US 6,444,613 · App. 09/522,213
Defoliant
Inventors:
Gerhard Feurer, Christopher Hugh Rosinger, Alfred Angermann, Felix Thurwachter, Werner Schlesinger
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Mar 9, 2000
Inventors
Gerhard Feurer
Christopher Hugh Rosinger
Alfred Angermann
Felix Thurwachter
Werner Schlesinger
Assignee (at issue)
Hoechst Schering Agrevo GmbH
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.