Granted Patent
Utility
US 4,651,388 · App. 06/776,151
Sliding clasp fastener
Inventors:
Mitsuo Horikawa, Akinobu Terasawa
Patented Case
View Patent ↗
Granted: Mar 24, 1987
Filed: Sep 13, 1985
Inventors
Mitsuo Horikawa
Akinobu Terasawa
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.