Granted Patent
Utility
US 4,657,002 · App. 06/731,024
Bone impactors
Inventor:
Charles D. Ray
Patented Case
View Patent ↗
Granted: Apr 14, 1987
Filed: May 6, 1985
Inventor
Charles D. Ray
Assignee (at issue)
Charles D. Ray, Ltd.
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.