Granted Patent
Utility
US 4,570,335 · App. 06/675,602
Apparatus for inserting slider for concealed fastener
Inventor:
Shingo Hatagishi
Patented Case
View Patent ↗
Granted: Feb 18, 1986
Filed: Nov 28, 1984
Inventor
Shingo Hatagishi
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.