Granted Patent
Utility
US 6,682,672 · App. 10/184,048
Process for making polymeric fiber
Inventor:
Kunihiko Takeuchi
Patented Case
View Patent ↗
Granted: Jan 27, 2004
Filed: Jun 28, 2002
Inventor
Kunihiko Takeuchi
Assignee (at issue)
HERCULES LLC
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.