Granted Patent
Utility
US 5,577,839 · App. 08/490,240
Device for charging injection molding and extruding machines and having a funnel provided with pins passing through clearances in a feed worm
Inventors:
Peter Brams, Franz Ell, Werner Mandl
Patented Case
View Patent ↗
Granted: Nov 26, 1996
Filed: Jun 14, 1995
Inventors
Peter Brams
Franz Ell
Werner Mandl
Assignee (at issue)
KraussMaffei 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.