Granted Patent
Utility
US 4,790,973 · App. 07/165,026
Method of making injection-molded slide fastener sliders
Inventors:
Hiroo Minami, Kazuo Ida
Patented Case
View Patent ↗
Granted: Dec 13, 1988
Filed: Mar 7, 1988
Inventors
Hiroo Minami
Kazuo Ida
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.