IP Library › Granted Patent US 5,503,759
Granted Patent Utility
US 5,503,759 · App. 08/359,978

Mixtures of alkylated aromatic amines and phenothiazines

Inventors: Samuel Evans, Stephan Allenbach
Patented Case View Patent ↗
Granted: Apr 2, 1996 Filed: Dec 20, 1994
Inventors
Samuel Evans
Stephan Allenbach
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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 5,503,759
App. No.
08/359,978
Filed
1994-12-20
Granted
1996-04-02
Kind
A