Method for aromatizing tobacco smoke
Patent 4466451 Issued on August 21, 1984. Estimated Expiration Date: 
June 4, 2002. 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.
June 4, 2002. 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 3390686 Mentholated cigarette filter Method for aromatizing tobacco smoke Patent #: 4311156 InventorsAssigneeApplicationNo. 06/384944 filed on 06/04/1982US Classes:131/335, By adding constituent to smoke stream131/342, Including particulate material131/343, Plasticizer or adhesive coating131/344Occupying plural, separate, distinct zonesExaminersPrimary: Millin, V.Attorney, Agent or FirmInternational ClassesA24D 3/00 (20060101)A24D 3/06 (20060101) Foreign Application Priority Data1981-06-10 CHAbstractA highly-porous silica gel charged with 10% by weight of anethole and 20% by weight of deactivating agent is used in the tip of a cigarette in order to aromatize the smoke drawn from the cigarette in a simple way with anethole even after prolonged storage of the cigarette. | |
