Granted Patent
Utility
US 5,075,482 · App. 07/572,728
Substituted 3,7,9-trioxa-1-aza-2,8-diphosphaspiro[4.5]decanes and stabilized compositions
Inventors:
Raymond Seltzer, Paul A. Odorisio, Sai P. Shum, Stephen D. Pastor
Patented Case
View Patent ↗
Granted: Dec 24, 1991
Filed: Aug 23, 1990
Inventors
Raymond Seltzer
Paul A. Odorisio
Sai P. Shum
Stephen D. Pastor
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.