Granted Patent
Utility
US 4,976,016 · App. 07/430,289
Separable slide fastener
Inventor:
Hideo Takabatake
Patented Case
View Patent ↗
Granted: Dec 11, 1990
Filed: Nov 2, 1989
Inventor
Hideo Takabatake
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.