Granted Patent
Utility
US 6,830,447 · App. 09/944,109
Valve gate assembly for injection molding
Inventor:
Denis Babin
Patented Case
View Patent ↗
Granted: Dec 14, 2004
Filed: Sep 4, 2001
Inventor
Denis Babin
Assignee (at issue)
Mold-Masters Limited
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.