Granted Patent
Utility
US 5,138,751 · App. 07/813,644
Buckle
Inventors:
Yutaka Shima, Ryukichi Murai
Patented Case
View Patent ↗
Granted: Aug 18, 1992
Filed: Dec 27, 1991
Inventors
Yutaka Shima
Ryukichi Murai
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.