Granted Patent
Utility
US 6,303,220 · App. 09/449,568
Polyethylene fiber and a non-woven fabric using the same
Inventors:
Koji Minamoto, Masayasu Suzuki
Patented Case
View Patent ↗
Granted: Oct 16, 2001
Filed: Nov 29, 1999
Inventors
Koji Minamoto
Masayasu Suzuki
Assignee (at issue)
Chisso 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.