Granted Patent
Utility
US 4,675,951 · App. 06/910,609
Slide fastener stringer
Inventor:
Akira Hasegawa
Patented Case
View Patent ↗
Granted: Jun 30, 1987
Filed: Sep 23, 1986
Inventor
Akira Hasegawa
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.