Granted Patent
Utility
US 4,850,085 · App. 07/213,991
Apparatus for producing hooks on hook-and-loop fasteners
Inventor:
Ryuichi Murasaki
Patented Case
View Patent ↗
Granted: Jul 25, 1989
Filed: Jun 27, 1988
Inventor
Ryuichi Murasaki
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.