Granted Patent
Utility
US 4,300,877 · App. 06/002,550
Underwater pelletizer
Inventor:
Howard W. Andersen
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: Jan 10, 1979
Inventor
Howard W. Andersen
Assignee (at issue)
Sterling Extruder Corporation
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.