Granted Patent
Utility
US 4,387,495 · App. 06/286,476
Method and apparatus for feeding conductive wire for anodizing process of slide fastener chain
Inventor:
Koitsu Morioka
Patented Case
View Patent ↗
Granted: Jun 14, 1983
Filed: Jul 24, 1981
Inventor
Koitsu Morioka
Assignee (at issue)
Yoshida Kogyo K.K.
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.