Granted Patent
Utility
US 6,589,296 · App. 09/701,375
Disperse dye mixtures
Inventors:
Alan T. Leaver, David Brierley
Patented Case
View Patent ↗
Granted: Jul 8, 2003
Filed: Nov 30, 2000
Inventors
Alan T. Leaver
David Brierley
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.