Granted Patent
Utility
US 6,627,310 · App. 10/077,506
Poly(trimethylene terephthalate) BCF carpet yarn with noncircular cross section and method for preparing the same
Inventors:
Kyool Lee, Young Chan CHOI, Jong Bok Lee
Patented Case
View Patent ↗
Granted: Sep 30, 2003
Filed: Feb 15, 2002
Inventors
Kyool Lee
Young Chan CHOI
Jong Bok Lee
Assignee (at issue)
HYOSUNG 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.