Signals and indicators – Indicators – Chemically activated type
Reexamination Certificate
2011-04-12
2011-04-12
Johnson, Amy Cohen (Department: 2841)
Signals and indicators
Indicators
Chemically activated type
C436S136000
Reexamination Certificate
active
07921798
ABSTRACT:
The oxygen detecting device (10) of the present invention includes an oxygen detector sheet having a sheet carrier (13) having a porous inorganic material filled therein which has been impregnated with an oxygen detecting fluid, and a film (11) having a predetermined oxygen transmittance for covering and sealing the sheet carrier (13). Since the sheet having the porous inorganic material filled therein is adopted, the oxygen detecting device has an excellent light resistance, leading to clear recognition of coloration for a long period of time. Because of excellent light resistance, the device keeps excellent property even after long exposure to a fluorescent lamp in a display case for displaying foods. Thus the device is suitable for checking quality of commercial products.
REFERENCES:
patent: 4526752 (1985-07-01), Perlman et al.
patent: 4657736 (1987-04-01), Marsoner et al.
patent: 4780356 (1988-10-01), Otouma et al.
patent: 5053339 (1991-10-01), Patel
patent: 6139935 (2000-10-01), Cullen et al.
patent: 6228804 (2001-05-01), Nakashima
patent: 7472667 (2009-01-01), Mochizuki et al.
patent: 7553355 (2009-06-01), Torres et al.
patent: 2006/0141106 (2006-06-01), Kodama et al.
patent: 57 010451 (1982-01-01), None
patent: 59-142463 (1984-08-01), None
patent: 61-144568 (1986-07-01), None
patent: 5-34332 (1993-02-01), None
patent: 5-85623 (1993-11-01), None
patent: 2644377 (1997-05-01), None
patent: 9-318614 (1997-12-01), None
patent: 10-148685 (1998-06-01), None
patent: 11-190729 (1999-07-01), None
patent: 11-192800 (1999-07-01), None
patent: 11-276888 (1999-10-01), None
patent: 2000-039429 (2000-02-01), None
patent: 2000-072977 (2000-03-01), None
patent: 2000-111541 (2000-04-01), None
patent: 2000-214155 (2000-08-01), None
patent: 2000-342235 (2000-12-01), None
patent: 2002-308342 (2002-10-01), None
patent: 2003-28850 (2003-01-01), None
patent: 2003-149224 (2003-05-01), None
patent: 2003-227797 (2003-08-01), None
patent: 2003-322648 (2003-11-01), None
Endo Hiroshi
Kodama Ryuichi
Tanaka Shigeru
Wada Toshitaka
Cohen Johnson Amy
Powdertech Co., Ltd.
Sughrue & Mion, PLLC
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