Method and apparatus for making self-extinguishing cigarette
Patent 4781203 Issued on November 1, 1988. Estimated Expiration Date: 
November 1, 2005. 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.
November 1, 2005. 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 ReferencesInventorApplicationNo. 06/734118 filed on 05/15/1985US Classes:131/79, With tobacco treatment131/284, With coating or printing131/31, With tobacco treatment131/349, With ash retainer or means to prevent or retard burning131/62, With tobacco treatment131/84.1Continuous rod or ribbon formerExaminersPrimary: Millin, V.Attorney, Agent or FirmInternational ClassesA24D 1/10 (20060101)A24D 1/00 (20060101) AbstractA cigarette making apparatus for making self-extinguishing cigarettes including an electromagnetically actuated spray nozzle for directing a solution of sodium silicate onto a stream of tobacco at predetermined intervals such that when the stream of tobacco is formed into a continuous cigarette rod and the rod is cut into individual cigarettes, the sodium silicate treated portion of the tobacco stream will fall at the midpoint of each finished cigarette. | |
