Composite cigarette enveloping material
Patent 4061147 Issued on December 6, 1977. Estimated Expiration Date: 
December 6, 1994. 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.
December 6, 1994. 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 637419 1020864 3030963 3736940 InventorApplicationNo. 05/580469 filed on 05/22/1975US Classes:131/349With ash retainer or means to prevent or retard burningExaminersPrimary: Mancene, Louis G.Assistant: Contreras, Wenceslao J. Attorney, Agent or FirmForeign Application Priority Data1974-05-22 ITAbstractA composite material for enveloping cigarette tobacco comprises an incombustible structure combined with cigarette paper, the incombustible structure consisting of a plurality of discrete sections joined together by easily detachable junction points. | |
