Granted Patent
Utility
US 5,314,132 · App. 07/849,936
Method for changing spools and apparatus therefor
Inventors:
Masatoshi Ando, Hiromine Mochizuki, Mitsuo Yamamoto
Patented Case
View Patent ↗
Granted: May 24, 1994
Filed: Mar 12, 1992
Inventors
Masatoshi Ando
Hiromine Mochizuki
Mitsuo Yamamoto
Assignees (at issue)
MITSUBISHI KOGYO KABUSHIKI KAISHA
Kanzaki Paper Manufacturing Co., Ltd.
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.