Granted Patent
Utility
US 4,520,544 · App. 06/552,312
Method of and apparatus for automatically finishing slide fasteners
Inventors:
Toyoo Morita, Yoichi Horikawa
Patented Case
View Patent ↗
Granted: Jun 4, 1985
Filed: Nov 16, 1983
Inventors
Toyoo Morita
Yoichi Horikawa
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.