Granted Patent
Utility
US 6,425,549 · App. 09/693,971
Steel cord take-up spool
Inventors:
Dal Hyang Bae, Jae Il Kwon, Jong-Sik Park
Patented Case
View Patent ↗
Granted: Jul 30, 2002
Filed: Oct 23, 2000
Inventors
Dal Hyang Bae
Jae Il Kwon
Jong-Sik Park
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.