Granted Patent
Utility
US 6,287,117 · App. 09/298,258
Endosseous dental implants including a healing screw and an optional implant extender
Inventor:
Gerald A. Niznick
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: Apr 22, 1999
Inventor
Gerald A. Niznick
Assignee (at issue)
Sulzer Dental 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.