Granted Patent
Utility
US 4,261,879 · App. 06/083,896
Tinted pit and fissure sealant
Inventor:
Russell N. Kemper
Patented Case
View Patent ↗
Granted: Apr 14, 1981
Filed: Oct 11, 1979
Inventor
Russell N. Kemper
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.