Granted Patent
Utility
US 4,325,184 · App. 06/210,296
Apparatus for manufacturing coiled coupling elements for slide fasteners
Inventor:
Shigenori Omori
Patented Case
View Patent ↗
Granted: Apr 20, 1982
Filed: Nov 25, 1980
Inventor
Shigenori Omori
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.