Granted Patent
Utility
US 6,517,580 · App. 09/521,896
Disk prosthesis for cervical vertebrae
Inventors:
Aymen Ramadan, Markus Bühler
Patented Case
View Patent ↗
Granted: Feb 11, 2003
Filed: Mar 9, 2000
Inventors
Aymen Ramadan
Markus Bühler
Assignee (at issue)
Scient'x Societe A Responsabilite Limitee
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.