Granted Patent
Utility
US 5,208,053 · App. 07/770,440
Runner shut-off for an injection molding system
Inventor:
Leo A. Vandenberg
Patented Case
View Patent ↗
Granted: May 4, 1993
Filed: Oct 3, 1991
Inventor
Leo A. Vandenberg
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.