Granted Patent
Utility
US 5,238,465 · App. 07/727,513
Fixing dye having polymerizable radical on fiber by treatment with ionizing radiation in presence of colorless monomer
Inventor:
Katharina Fritzsche
Patented Case
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Granted: Aug 24, 1993
Filed: Jul 9, 1991
Inventor
Katharina Fritzsche
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.