Granted Patent
Utility
US 4,472,840 · App. 06/430,597
Method of inducing osseous formation by implanting bone graft material
Inventor:
Steven R. Jefferies
Patented Case
View Patent ↗
Granted: Sep 25, 1984
Filed: Sep 30, 1982
Inventor
Steven R. Jefferies
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.