U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Reduced sidestream smoke smoking article wrappers, methods of making such wrappers and smoking articles made from such wrappers

Patent 5253660 Issued on October 19, 1993. Estimated Expiration Date: Icon_subject April 24, 2012. Estimated 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.

Patent References

2673799

3744496

Wrapper for smoking articles containing magnesium oxide
Patent #: 4231377
Issued on: 11/04/1980
Inventor: Cline ,   et al.

Wrapper for smoking articles and method
Patent #: 4450847
Issued on: 05/29/1984
Inventor: Owens

Method and smoking article wrapper for reducing sidestream smoke
Patent #: 4461311
Issued on: 07/24/1984
Inventor: Mathews ,   et al.

Sidestream reducing cigarette paper
Patent #: 4805644
Issued on: 02/21/1989
Inventor: Hampl, Jr. ,   et al.

Smoking article wrapper and method of making same
Patent #: 4881557
Issued on: 11/21/1989
Inventor: Martin

Smoking article wrapper and method of making same
Patent #: 4915118
Issued on: 04/10/1990
Inventor: Kaufman, et al.

Flame-retardant fillers in silane-grafted ethylene polymer process
Patent #: 4921916
Issued on: 05/01/1990
Inventor: Howell, et al.

Filled cohesive polymer matrices and process for producing same
Patent #: 4999387
Issued on: 03/12/1991
Inventor: Rothon, et al.

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Inventors

Assignee

Application

No. 873230 filed on 04/24/1992

US Classes:

131/365, Wrapper or binder162/139Cigarette paper

Examiners

Primary: Millin, V.
Assistant: Doyle, J.

Attorney, Agent or Firm

International Class

A24D 001/02

Abstract

A cigarette or cigar wrapper is disclosed wherein the paper filler consists of two homogeneously intermixed minerals, viz huntite and hydromagnesite, alone, or admixed with calcium carbonate or magnesium hydroxide or calcium carbonate and magnesium hydroxide and carbon.

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