Granted Patent
Utility
US 5,597,586 · App. 08/496,300
Underwater pelletizer die system for forming multisize thermoplastic pellets
Inventors:
Phillip S. Wilson, Marie J. Hersman
Patented Case
View Patent ↗
Granted: Jan 28, 1997
Filed: Jun 28, 1995
Inventors
Phillip S. Wilson
Marie J. Hersman
Assignee (at issue)
Davidson Textron, INC
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.