Granted Patent
Utility
US 6,661,501 · App. 09/430,196
Cytological stain composition including verification characteristic
Inventors:
David Zahniser, Norman Soule, Louise Isenstein
Patented Case
View Patent ↗
Granted: Dec 9, 2003
Filed: Oct 29, 1999
Inventors
David Zahniser
Norman Soule
Louise Isenstein
Assignee (at issue)
CYTYC CORPORATION
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.