Granted Patent
Utility
US 4,505,009 · App. 06/535,790
Slide fastener with a separator attached thereto
Inventors:
Hiroshi Yoshida, Yoshiharu Yamaguchi
Patented Case
View Patent ↗
Granted: Mar 19, 1985
Filed: Sep 26, 1983
Inventors
Hiroshi Yoshida
Yoshiharu Yamaguchi
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.