Granted Patent
Utility
US 6,250,921 · App. 09/471,456
Fitting for dental syringe
Inventor:
Bernard S. Esrock
Patented Case
View Patent ↗
Granted: Jun 26, 2001
Filed: Dec 22, 1999
Inventor
Bernard S. Esrock
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.