Granted Patent
Utility
US 4,388,751 · App. 06/201,695
Method and apparatus for manufacturing slide fastener coupling elements
Inventor:
Takeo Fukuroi
Patented Case
View Patent ↗
Granted: Jun 21, 1983
Filed: Oct 29, 1980
Inventor
Takeo Fukuroi
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.