Granted Patent
Utility
US 4,854,253 · App. 07/297,393
Method and apparatus for applying protective strip to end of slide fastener
Inventor:
Akio Yunoki
Patented Case
View Patent ↗
Granted: Aug 8, 1989
Filed: Jan 17, 1989
Inventor
Akio Yunoki
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.