Granted Patent
Utility
US 6,447,283 · App. 09/327,490
Injection molding heater with melt bore therethrough
Inventor:
Jobst U. Gellert
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Jun 8, 1999
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.