Granted Patent
Utility
US 5,167,052 · App. 07/813,645
Lockable slider for a slide fastener
Inventors:
Tsunetaka Aoki, Shunji Akashi
Patented Case
View Patent ↗
Granted: Dec 1, 1992
Filed: Dec 27, 1991
Inventors
Tsunetaka Aoki
Shunji Akashi
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.