Granted Patent
Utility
US 4,167,392 · App. 05/645,475
Transfer printing process for hydrophilic fibrous material or blends of hydrophilic and synthetic fibrous material, with reactive disperse dyes
Inventor:
Raymond Defago
Patented Case
View Patent ↗
Granted: Sep 11, 1979
Filed: Dec 30, 1975
Inventor
Raymond Defago
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.