Granted Patent
Utility
US 6,511,621 · App. 09/757,618
Method for injection-molding a propeller fan
Inventors:
Atsushi Suzuki, Masashi Inoue, Fumio Kondoh, Naoki Toda, Matsuo Sakuma, Hirofumi Gouda, Manabu Nomura
Patented Case
View Patent ↗
Granted: Jan 28, 2003
Filed: Jan 11, 2001
Inventors
Atsushi Suzuki
Masashi Inoue
Fumio Kondoh
Naoki Toda
Matsuo Sakuma
Hirofumi Gouda
Manabu Nomura
Assignees (at issue)
MITSUBISHI ELECTRIC CORPORATION
Yagyu Rubber Co., Ltd.
Idemitsu Petrochemical 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.