Granted Patent
Utility
US 5,030,729 · App. 07/487,347
Piperidine compounds and their use as stabilizers
Inventors:
Giuseppe Cantatore, Valerio Borzatta
Patented Case
View Patent ↗
Granted: Jul 9, 1991
Filed: Mar 1, 1990
Inventors
Giuseppe Cantatore
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.