Granted Patent
Utility
US 4,255,311 · App. 06/097,591
Storage-stable, formaldehyde-free composition for the treatment of textile material containing hydroxyl groups
Inventors:
Sameer H. Eldin, Hanspeter Gysin
Patented Case
View Patent ↗
Granted: Mar 10, 1981
Filed: Nov 26, 1979
Inventors
Sameer H. Eldin
Hanspeter Gysin
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.