Granted Patent
Utility
US 5,433,574 · App. 08/364,003
Gas purge unit for a portable container
Inventors:
Hitoshi Kawano, Teppei Yamashita, Masanao Murata, Tsuyoshi Tanaka, Teruya Morita, Atsushi Okuno, Mitsuhiro Hayashi, Akio Nakamura
Patented Case
View Patent ↗
Granted: Jul 18, 1995
Filed: Dec 27, 1994
Inventors
Hitoshi Kawano
Teppei Yamashita
Masanao Murata
Tsuyoshi Tanaka
Teruya Morita
Atsushi Okuno
Mitsuhiro Hayashi
Akio Nakamura
Assignee (at issue)
Shinko Electric 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.