Granted Patent
Utility
US 6,454,973 · App. 09/626,344
Multiple injection of a single injection molding valve gate
Inventor:
Dennis J. Norton
Patented Case
View Patent ↗
Granted: Sep 24, 2002
Filed: Jul 26, 2000
Inventor
Dennis J. Norton
Assignee (at issue)
Xerox Corporation
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.