Method of removing nicotine in smoking and a smoking filter to be used therefor
Patent 3943940 Issued on March 16, 1976. Estimated Expiration Date: 
March 16, 1993. 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.
March 16, 1993. 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 3434479 InventorApplicationNo. 506192 filed on 09/13/1974US Classes:131/334, By chemical reaction, e.g., ion-exchange, chelating, catalytic, etc.131/335, By adding constituent to smoke stream131/337Having destructible, fusible, soluble, or deformable container for treatment materialExaminersPrimary: Michell, Robert W.Assistant: Millin, V. Attorney, Agent or FirmAbstractThis invention relates to a method of removing nicotine in smoking and a smoking filter to be used therefore. The method according to the present invention comprising the impregnation of smoking filter with an aqueous solution of potassium permanganate and chlorine just before smoking and thereby to change, by the smoking filter through which smoke passes, poisonous nicotine contained in the smoke produced from burning of tobacco into nutritious vitamin which is a factor of vitamin B complex. | |
