Granted Patent
Utility
US 4,752,992 · App. 07/024,679
Slide fastener with thermoplastic end stops
Inventors:
Naoki Kondo, Yoshinori Fujisaki
Patented Case
View Patent ↗
Granted: Jun 28, 1988
Filed: Mar 11, 1987
Inventors
Naoki Kondo
Yoshinori Fujisaki
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.