Granted Patent
Utility
US 4,990,140 · App. 07/435,855
Flexible spray tip for syringe
Inventor:
John Black
Patented Case
View Patent ↗
Granted: Feb 5, 1991
Filed: Nov 13, 1989
Inventor
John Black
Assignee (at issue)
Johnson & Johnson Medical GMBH
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.