Granted Patent
Utility
US 5,046,942 · App. 07/635,989
Injection molding nozzle having tapered heating element adjacent the bore
Inventor:
Jobst U. Gellert
Patented Case
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Granted: Sep 10, 1991
Filed: Dec 31, 1990
Inventor
Jobst U. Gellert
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.