Smoking article wrapper and method of making same
Patent 4915118 Issued on April 10, 1990. Estimated Expiration Date: 
April 20, 2008. 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.
April 20, 2008. 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 ReferencesWrapper for smoking articles containing magnesium oxide Wrapper for smoking articles and method Wrapper for smoking articles and method Wrapper for smoking articles and method Patent #: 4450847 InventorsAssigneeApplicationNo. 183988 filed on 04/20/1988US Classes:131/365, Wrapper or binder162/139Cigarette paperExaminersPrimary: Millin, V.Attorney, Agent or FirmInternational ClassA24D 001/02AbstractA 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. | |
