Granted Patent
Utility
US 6,703,453 · App. 10/019,578
Condensation cross-linking polyurethane materials containing special aminosilanes, a method for the production thereof and their use
Inventors:
Lutz Schmalstieg, Ralf Lemmerz, Ulrich Walter, Oswald Wilmes
Patented Case
View Patent ↗
Granted: Mar 9, 2004
Filed: Dec 21, 2001
Inventors
Lutz Schmalstieg
Ralf Lemmerz
Ulrich Walter
Oswald Wilmes
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.