Granted Patent
Utility
US 4,484,891 · App. 06/433,075
Vibratory endodontic device
Inventor:
John E. Nash
Patented Case
View Patent ↗
Granted: Nov 27, 1984
Filed: Oct 6, 1982
Inventor
John E. Nash
Assignee (at issue)
Syntex (U.S.A.) LLC
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.