Granted Patent
Utility
US 4,967,452 · App. 07/408,109
Attaching device for garment fastener element
Inventors:
Hirokazu Watanabe, Yoshihiro Kanzaka
Patented Case
View Patent ↗
Granted: Nov 6, 1990
Filed: Sep 15, 1989
Inventors
Hirokazu Watanabe
Yoshihiro Kanzaka
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.