Granted Patent
Utility
US 4,811,585 · App. 07/032,109
Device for forming asymmetrical articles by rolling
Inventors:
Ryoichi Takahashi, Tomoyoshi Sato, Hidehiko Tsukamoto, Kazuo Morimoto, Nobutaka Maeda
Patented Case
View Patent ↗
Granted: Mar 14, 1989
Filed: Mar 30, 1987
Inventors
Ryoichi Takahashi
Tomoyoshi Sato
Hidehiko Tsukamoto
Kazuo Morimoto
Nobutaka Maeda
Assignees (at issue)
Nissan Motor Co., Ltd.
MITSUBISHI KOGYO KABUSHIKI KAISHA
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.