Granted Patent
Utility
US 5,330,472 · App. 07/714,473
Device for applying a tensional force between vertebrae of the human vertebral column
Inventor:
Peter Metz-Stavenhagen
Patented Case
View Patent ↗
Granted: Jul 19, 1994
Filed: Jun 13, 1991
Inventor
Peter Metz-Stavenhagen
Assignee (at issue)
Howmedica 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.