Granted Patent
Utility
US 4,714,573 · App. 06/901,362
Method of manufacturing molded slide fastener coupling elements
Inventor:
Hiroshi Yoshida
Patented Case
View Patent ↗
Granted: Dec 22, 1987
Filed: Aug 28, 1986
Inventor
Hiroshi Yoshida
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.