Granted Patent
Utility
US 4,732,631 · App. 06/884,900
Method of manufacturing a tape having a series of surface-type fastener pieces
Inventor:
Kozo Shimizu
Patented Case
View Patent ↗
Granted: Mar 22, 1988
Filed: Jul 14, 1986
Inventor
Kozo Shimizu
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.