Granted Patent
Utility
US 5,800,872 · App. 08/664,734
Aqueous polyurethane dispersions containing uretidione
Inventors:
Lawrence E. Katz, Augustin T. Chen, John W. Reisch, Richard J. Feegel
Patented Case
View Patent ↗
Granted: Sep 1, 1998
Filed: Jun 17, 1996
Inventors
Lawrence E. Katz
Augustin T. Chen
John W. Reisch
Richard J. Feegel
Assignee (at issue)
Arco Chemical Technology, L.P.
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.