Granted Patent
Utility
US 6,684,884 · App. 09/912,067
Contraceptive transcervical fallopian tube occlusion devices and methods
Inventors:
Julian Nikolchev, Dai Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich
Patented Case
View Patent ↗
Granted: Feb 3, 2004
Filed: Jul 23, 2001
Inventors
Julian Nikolchev
Dai Ton
Ashish Khera
Donnell W. Gurskis
Steven Bacich
Assignee (at issue)
Conceptus, 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.