Granted Patent
Utility
US 5,840,586 · App. 08/565,498
Method and apparatus for antenatal risk assessment for chromosomal abnormalities factoring in maternal age influence
Inventor:
Christopher Davies
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Nov 30, 1995
Inventor
Christopher Davies
Assignee (at issue)
Clinical Diagnostic Systems, Inc.
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.