Granted Patent
Utility
US 6,274,535 · App. 09/522,214
Defoliant
Inventors:
Gerhard Feurer, Felix Thurwachter, Oswald Ort, Werner Schlesinger
Patented Case
View Patent ↗
Granted: Aug 14, 2001
Filed: Mar 9, 2000
Inventors
Gerhard Feurer
Felix Thurwachter
Oswald Ort
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.