Granted Patent
Utility
US 6,821,101 · App. 10/121,940
Injection unit for injection molding machines with continuously operating plasticizing unit
Inventors:
Ingo Köhler, Ansgar Jaeger
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Apr 12, 2002
Inventors
Ingo Köhler
Ansgar Jaeger
Assignee (at issue)
Demag Ergotech 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.