Granted Patent
Utility
US 5,302,129 · App. 07/794,069
Endodontic procedure and instrument
Inventors:
Derek E. Heath, Jerry A. Mooneyhan
Patented Case
View Patent ↗
Granted: Apr 12, 1994
Filed: Nov 19, 1991
Inventors
Derek E. Heath
Jerry A. Mooneyhan
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.