Granted Patent
Utility
US 4,534,874 · App. 06/554,040
Anti-oxidative, anti-thermal, and anti-actinic degradation amides of hydroxyphenylalkylthio alkanoic acids, compositions, and method of use therefor
Inventors:
David H. Steinberg, Raymond Seltzer, John J. Luzzi, Frank P. Cortolano
Patented Case
View Patent ↗
Granted: Aug 13, 1985
Filed: Nov 21, 1983
Inventors
David H. Steinberg
Raymond Seltzer
John J. Luzzi
Frank P. Cortolano
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.