Granted Patent
Utility
US 4,948,889 · App. 07/167,808
Triazine compounds derived from 2,2,6,6-tetramethylpiperidine
Inventors:
Giuseppe Cantatore, Franca Masina, Valerio Borzatta
Patented Case
View Patent ↗
Granted: Aug 14, 1990
Filed: Mar 14, 1988
Inventors
Giuseppe Cantatore
Franca Masina
Valerio Borzatta
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.