Granted Patent
Utility
US 5,166,350 · App. 07/769,741
Process for the manufacture of fluoran compounds
Inventors:
Davor Bedekovic, Jerry L. Pool, Brian John Williams, Robert Garner, John Barry Henshall
Patented Case
View Patent ↗
Granted: Nov 24, 1992
Filed: Sep 30, 1991
Inventors
Davor Bedekovic
Jerry L. Pool
Brian John Williams
Robert Garner
John Barry Henshall
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.