Granted Patent
Utility
US 6,312,261 · App. 09/481,611
Endodontic obturator with removable carrier and method of use thereof
Inventor:
Ralph C. Mays
Patented Case
View Patent ↗
Granted: Nov 6, 2001
Filed: Jan 12, 2000
Inventor
Ralph C. Mays
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.