Granted Patent
Utility
US 4,711,020 · App. 06/901,658
Top end-stop attaching machine with improved top end-stop supplying apparatus
Inventors:
Kozo Watanabe, Akiyoshi Kando, Yoshiyuki Horita
Patented Case
View Patent ↗
Granted: Dec 8, 1987
Filed: Aug 29, 1986
Inventors
Kozo Watanabe
Akiyoshi Kando
Yoshiyuki Horita
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.