Granted Patent
Utility
US 4,659,301 · App. 06/671,313
Method of and apparatus for manufacturing molded slide fastener coupling elements
Inventor:
Hiroshi Yoshida
Patented Case
View Patent ↗
Granted: Apr 21, 1987
Filed: Nov 14, 1984
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.