Chemical apparatus and process disinfecting – deodorizing – preser – For deodorizing of – or chemical purification of – or... – Including means adding material into environmental gas
Reexamination Certificate
2007-03-12
2009-06-09
McKane, Elizabeth L (Department: 1797)
Chemical apparatus and process disinfecting, deodorizing, preser
For deodorizing of, or chemical purification of, or...
Including means adding material into environmental gas
C239S053000
Reexamination Certificate
active
07544332
ABSTRACT:
Devices for dispensing air treatment chemicals are described. They have a first substrate bearing a first volatile air treatment chemical that is dispensed when the first substrate is heated, and a second substrate bearing a second volatile air treatment chemical that is dispensed from the second substrate when the second substrate is heated. The substrates are positioned in stacked fashion relative to each other, optionally with a permeable membrane there between. There may also be a use-up cue indicator unit coordinated with use of the chemicals. The first and second substrates and indicator unit can be in a single replaceable cartridge unit, preferably with the second substrate in the form of a porous ring that houses the indicator unit.
REFERENCES:
patent: 4128508 (1978-12-01), Munden
patent: 4228124 (1980-10-01), Kashihara et al.
patent: 4439415 (1984-03-01), Hennart et al.
patent: 4824827 (1989-04-01), Kelly et al.
patent: 4921636 (1990-05-01), Traas
patent: 5111477 (1992-05-01), Muderlak et al.
patent: 5139864 (1992-08-01), Lindauer
patent: 5647052 (1997-07-01), Patel et al.
patent: 6031967 (2000-02-01), Flashinski et al.
patent: 6154607 (2000-11-01), Flashinski et al.
patent: 6551560 (2003-04-01), Flashinski et al.
patent: 6663838 (2003-12-01), Soller
patent: 6773679 (2004-08-01), Jaworski et al.
patent: 6790670 (2004-09-01), Munagavalasa et al.
patent: 6834847 (2004-12-01), Bartsch et al.
patent: 6925252 (2005-08-01), Zhang et al.
patent: 2004/0007787 (2004-01-01), Kvietok et al.
patent: 2004/0151747 (2004-08-01), Davis et al.
patent: 2005/0284852 (2005-12-01), David et al.
patent: 1356731 (2003-10-01), None
patent: 748994 (1956-05-01), None
U.S. Appl. No. 11/346,697, filed Feb. 3, 2006, J. Adair et al.
U.S. Appl. No. 11/359,090, filed Feb. 22, 2006, B. Davis et al.
U.S. Appl. No. 11/379,495, filed Apr. 20, 2006, J. Adair et al.
Ananth Gopal P.
Davis Brian T.
De Silva Ranjit A.
McKane Elizabeth L
S.C. Johnson & Son Inc.
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