Granted Patent
Utility
US 4,228,281 · App. 05/943,031
Dicarboxylic acids containing triazine rings
Inventors:
Thomas Kainmuller, Jurgen Habermeier, Lothar Buxbaum
Patented Case
View Patent ↗
Granted: Oct 14, 1980
Filed: Sep 18, 1978
Inventors
Thomas Kainmuller
Jurgen Habermeier
Lothar Buxbaum
Assignee (at issue)
Ciba-Geigy
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.