Coated self-extinguished cigarette
Patent 4480650 Issued on November 6, 1984. Estimated Expiration Date: 
March 2, 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.
March 2, 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.InventorApplicationNo. 06/353963 filed on 03/02/1982US Classes:131/349, With ash retainer or means to prevent or retard burning131/365Wrapper or binderExaminersPrimary: Millin, V.International ClassesA24D 1/02 (20060101)A24D 1/12 (20060101) A24D 1/00 (20060101) AbstractCigarette coating comprises a fireproof coating made from clay or ceramic applied on the inside of the cigarette paper divided in sections to prevent glowing tobacco from penetrating to the outside but allows air circulation through cracks created when heat makes contact with the coating. | |
