Granted Patent
Utility
US 5,407,359 · App. 08/057,685
Endosseous implant system with captured screw
Inventors:
Alan R. Balfour, Donald E. Hendricks
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: May 5, 1993
Inventors
Alan R. Balfour
Donald E. Hendricks
Assignee (at issue)
Calcitek, 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.