Granted Patent
Utility
US 4,411,668 · App. 06/340,685
Liquid dyestuff preparations
Inventors:
Suresh C. Agarwal, Horst Jager, Nitya G. Podder, Hans Mollet
Patented Case
View Patent ↗
Granted: Oct 25, 1983
Filed: Jan 20, 1982
Inventors
Suresh C. Agarwal
Horst Jager
Nitya G. Podder
Hans Mollet
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.