Granted Patent
Utility
US 4,861,342 · App. 07/202,752
Dyeing or finishing process using padding with continuous fixing of textile materials: graft polymer and microwave heating
Inventor:
Paul Danel
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Jun 3, 1988
Inventor
Paul Danel
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.