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US Patent 4915118 - Smoking article wrapper and method of making same

US Patent Issued on April 10, 1990
Estimated Patent Expiration Date: Icon_subject April 20, 2008Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
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Abstract

A smoking article wrapper which when combined with a suitable tobacco column produces up to 75% less particulate sidestream smoke than do prior art cigarette paper wrappers and to methods of producing same. The paper conains freshly precipitated magnesium hydroxide filler precipitated by an equal or near equal stoichiometric addition rate process in the presence of the particulate magnesium hydroxide and/or calcium co-filler(s) and in the absence of the cellulosic pulp fibers.

Inventors

Assignee

Application

No. 183988 filed on 04/20/1988

US Classes:

131/365, Wrapper or binder162/139Cigarette paper

Field of Search

131/365, Wrapper or binder131/331, SMOKE SEPARATOR OR TREATER131/332, Having a polymer162/139Cigarette paper

Examiners

Primary: Millin, V.

Attorney, Agent or Firm

US Patent References

4231377, Wrapper for smoking articles containing magnesium oxide
Issued on: 11/04/1980
Inventor: Cline ,   et al.
4420002, Wrapper for smoking articles and method
Issued on: 12/13/1983
Inventor: Cline
4433697, Wrapper for smoking articles and method
Issued on: 02/28/1984
Inventor: Cline ,   et al.
4450847Wrapper for smoking articles and method
Issued on: 05/29/1984
Inventor: Owens

International Class

A24D 001/02

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