Cigarette filter

Details Cigarette filter Cigarette filter

2005-03-17

2009-02-10

Tucker, Philip C (Department: 1791)

Tobacco

Smoke separator or treater

By chemical reaction, e.g., ion-exchange, chelating,...

C131S331000

Reexamination Certificate

active

07487782

ABSTRACT:
A cigarette filter has a filter medium containing an inorganic basic substance such as sodium carbonate and a moisturizing agent selected from the group consisting of glycerin, sodium propionate and sodium lactate.

REFERENCES:
patent: 2968306 (1961-01-01), Touey et al.
patent: 3370592 (1968-02-01), Schultz et al.
patent: 3605759 (1971-09-01), Owens et al.
patent: 3635226 (1972-01-01), Horsewell et al.
patent: 3802441 (1974-04-01), Hannersmith
patent: 4763674 (1988-08-01), Lelah
patent: 5690127 (1997-11-01), Chapman et al.
patent: 5860428 (1999-01-01), Lesser
patent: 6311695 (2001-11-01), Williams
patent: 6311696 (2001-11-01), Dittrich et al.
patent: 2239494 (1997-06-01), None
patent: 908185 (1962-10-01), None
patent: 1078340 (1967-08-01), None
patent: 1255564 (1971-12-01), None
patent: 1255657 (1971-12-01), None
patent: 1502680 (1978-03-01), None
patent: 62-272963 (1987-11-01), None
patent: 2156099 (2000-09-01), None
patent: 738495 (1980-05-01), None
patent: WO-96/28133 (1996-09-01), None
patent: WO-02/21948 (2002-03-01), None
Taiwan Patent Office, Decision of Rejection, Apr. 20, 2004, Taiwan.
Derwent Publications Ltd., London, GB; AN 1979-09448B And SU 597 510 A-03-14-1978.

Affiliated with

Also associated with

Rating

Cigarette filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cigarette filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cigarette filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4118898