Granted Patent
Utility
US 4,918,192 · App. 07/133,792
Polysubstituted aryl acridinium esters
Inventors:
Say-Jong Law, Steve C. S. Chang, Stephen Palmacci, Roger S. Cubicciotti
Patented Case
View Patent ↗
Granted: Apr 17, 1990
Filed: Dec 14, 1987
Inventors
Say-Jong Law
Steve C. S. Chang
Stephen Palmacci
Roger S. Cubicciotti
Assignee (at issue)
Ciba Corning Diagnostics Corp.
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.