Granted Patent
Utility
US 4,512,743 · App. 06/346,348
Method for masking discoloration on teeth
Inventors:
Edward A. Santucci, William B. Racz
Patented Case
View Patent ↗
Granted: Apr 23, 1985
Filed: Feb 5, 1982
Inventors
Edward A. Santucci
William B. Racz
Assignee (at issue)
Johnson & Johnson Dental Products Company
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.