Granted Patent
Utility
US 4,933,451 · App. 07/354,066
Polyamines partially substituted by bis-piperidyl-triazines
Inventors:
Giuseppe Cantatore, Valerio Borzatta, Franca Masina
Patented Case
View Patent ↗
Granted: Jun 12, 1990
Filed: May 22, 1989
Inventors
Giuseppe Cantatore
Valerio Borzatta
Franca Masina
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.