Granted Patent
Utility
US 4,633,792 · App. 06/837,591
Apparatus for sewing slide fasteners to pairs of fabric pieces
Inventor:
Hiroshi Yoshioka
Patented Case
View Patent ↗
Granted: Jan 6, 1987
Filed: Mar 7, 1986
Inventor
Hiroshi Yoshioka
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.