Granted Patent
Utility
US 4,245,375 · App. 05/885,277
Sheet-connecting structure
Inventors:
Hiroshi Yoshida, Kiyoo Yoneya
Patented Case
View Patent ↗
Granted: Jan 20, 1981
Filed: Mar 10, 1978
Inventors
Hiroshi Yoshida
Kiyoo Yoneya
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.