Granted Patent
Utility
US 5,361,471 · App. 08/094,341
Slide fastener coupling element forming apparatus and cutting punch
Inventors:
Koitsu Morioka, Yasuhiko Matsuda
Patented Case
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Granted: Nov 8, 1994
Filed: Jul 20, 1993
Inventors
Koitsu Morioka
Yasuhiko Matsuda
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.