Granted Patent
Utility
US 5,394,593 · App. 08/181,913
Slide-fastener coupling element and method of making the same
Inventor:
Toshio Aoki
Patented Case
View Patent ↗
Granted: Mar 7, 1995
Filed: Jan 18, 1994
Inventor
Toshio Aoki
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.