Granted Patent
Utility
US 4,839,401 · App. 06/913,617
Light curable dental pit and fissure sealant
Inventor:
Samuel Waknine
Patented Case
View Patent ↗
Granted: Jun 13, 1989
Filed: Sep 30, 1986
Inventor
Samuel Waknine
Assignee (at issue)
Jeneric/Pentron Incorporated
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.