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US 5,845,648 AGranted
Multi-compartment expandable filter for a smoking product
OwnerJohn E. Martininventor
Life of this patent
Estimating the term…
Abstract
A filter which will be attached to the end of a smoking product such as a cigarette. It would have a normal filter connected to the tube of tobacco, with a dual chamber which holds fine tobacco dust particles in one chamber. The other chamber would contain a plurality of loose fibers and would be connected to another normal cigarette filter.
Claims5
A multi-compartment filter for a smoking product comprising:
- a first filter compartment attached to an end of a smoking product,
- a second filter compartment attached to said first compartment,
- said second filter compartment containing dust particles,
- a third filter compartment attached to said second filter compartment,
- said third filter compartment containing fibers which are attached to adjacent sides of said third filter compartment,
- a fourth filter compartment attached to said third filter compartment.
3 more elements
Dependencies are inferred from the claim text.