Granted Patent
Utility
US 4,283,175 · App. 06/091,018
Dental scaler having scaling tip with rounded edge work surfaces particularly suitable for circular or ellipsoidal patterns of vibration
Inventor:
John E. Nash
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: Nov 5, 1979
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.