Granted Patent
Utility
US 5,421,716 · App. 08/254,538
Injection molding nozzle with two removable inserts
Inventor:
Jobst U. Gellert
Patented Case
View Patent ↗
Granted: Jun 6, 1995
Filed: Jun 6, 1994
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.