Granted Patent
Utility
US 5,348,463 · App. 08/074,619
Injection unit having adjustable and settable nozzle contact pressure
Inventors:
Ralph Keitel, Bruno Stillhard
Patented Case
View Patent ↗
Granted: Sep 20, 1994
Filed: Jun 11, 1993
Inventors
Ralph Keitel
Bruno Stillhard
Assignee (at issue)
Klockner Ferromatik Desma 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.