Granted Patent
Utility
US 6,180,765 · App. 09/462,497
Reactive diamine-linked azo dyes
Inventor:
Warren Ebenezer
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Jan 24, 2000
Inventor
Warren Ebenezer
Assignee (at issue)
BASF SE
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.