Granted Patent
Utility
US 4,392,363 · App. 06/178,309
Slide fastener stringer with vent holes
Inventor:
Yoshio Matsuda
Patented Case
View Patent ↗
Granted: Jul 12, 1983
Filed: Aug 15, 1980
Inventor
Yoshio 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.