Granted Patent
Utility
US 5,674,299 · App. 08/500,654
Process for dyeing paper
Inventor:
Adolf Kaser
Patented Case
View Patent ↗
Granted: Oct 7, 1997
Filed: Jul 12, 1995
Inventor
Adolf Kaser
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.