Granted Patent
Utility
US 4,221,027 · App. 06/045,606
Lockable slider for slide fasteners
Inventor:
Kiyoshi Oda
Patented Case
View Patent ↗
Granted: Sep 9, 1980
Filed: Jun 5, 1979
Inventor
Kiyoshi Oda
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.