Granted Patent
Utility
US 4,774,744 · App. 07/136,520
Snap Buckle
Inventor:
Kazumi Kasai
Patented Case
View Patent ↗
Granted: Oct 4, 1988
Filed: Dec 21, 1987
Inventor
Kazumi Kasai
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.