Granted Patent
Utility
US 6,802,871 · App. 09/688,066
Composition for pretreating fiber materials
Inventors:
Biancamaria Prozzo, Peter Seifert
Patented Case
View Patent ↗
Granted: Oct 12, 2004
Filed: Oct 13, 2000
Inventors
Biancamaria Prozzo
Peter Seifert
Assignee (at issue)
Ciba Specialty Chemicals Corporation
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.