Granted Patent
Utility
US 5,129,127 · App. 07/696,589
Slide fastener stringer
Inventor:
Tsutomu Hamatani
Patented Case
View Patent ↗
Granted: Jul 14, 1992
Filed: May 7, 1991
Inventor
Tsutomu Hamatani
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.