Granted Patent
Utility
US 4,866,112 · App. 07/226,358
Thermoplastics containing a nickel complex pigment
Inventors:
Paul Lienhard, Edward E. Jaffe
Patented Case
View Patent ↗
Granted: Sep 12, 1989
Filed: Jul 29, 1988
Inventors
Paul Lienhard
Edward E. Jaffe
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.