Granted Patent
Utility
US 5,660,623 · App. 08/396,044
Resinated pigment compositions
Inventors:
Ian Alexander Macpherson, John Aldred Nimmo, Brian Tuck
Patented Case
View Patent ↗
Granted: Aug 26, 1997
Filed: Feb 28, 1995
Inventors
Ian Alexander Macpherson
John Aldred Nimmo
Brian Tuck
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.