Granted Patent
Utility
US 5,865,857 · App. 08/878,845
Blue to green disperse dyes for synthetic fiber material
Inventors:
Denise Cavanagh, Mark Robert James, Barry Huston Meyrick, Paul Wight
Patented Case
View Patent ↗
Granted: Feb 2, 1999
Filed: Jun 19, 1997
Inventors
Denise Cavanagh
Mark Robert James
Barry Huston Meyrick
Paul Wight
Assignee (at issue)
Zeneca Limited
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.