Granted Patent
Utility
US 6,521,707 · App. 10/004,038
Isocyanates containing amino groups
Inventors:
Wolfgang Podszun, Joachim Krüger, Kamelia Karlou-Eyrisch
Patented Case
View Patent ↗
Granted: Feb 18, 2003
Filed: Nov 1, 2001
Inventors
Wolfgang Podszun
Joachim Krüger
Kamelia Karlou-Eyrisch
Assignee (at issue)
Bayer Aktiengesellschaft
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.