Granted Patent
Utility
US 6,143,344 · App. 09/255,006
Bixin colorant compositions
Inventors:
Shiu-Chung Jon, Rama Ramagopal, Myron D. Nicholson
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: Feb 22, 1999
Inventors
Shiu-Chung Jon
Rama Ramagopal
Myron D. Nicholson
Assignee (at issue)
Viskase Companies, Inc.
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.