Granted Patent
Utility
US 5,941,284 · App. 09/121,014
Channel housing with curving channels, and a manufacturing method therefor
Inventors:
Shinji Gasami, Yoshifumi Iwata, Yoshihiro Takemoto, Shoso Nishida
Patented Case
View Patent ↗
Granted: Aug 24, 1999
Filed: Jul 22, 1998
Inventors
Shinji Gasami
Yoshifumi Iwata
Yoshihiro Takemoto
Shoso Nishida
Assignees (at issue)
DAIKYO CORPORATION
THE JAPAN STEEL WORKS, 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.