[' ', 'an', 'a', 'RECENT', 'PATENTS', 'OF', 'INTEREST', 'IN', 'THE', 'CIGARETTE', 'TOW', 'FIELD', ' ', 'This', 'patent', 'claims', 'a', 'prepared', 'tobacco', 'product', 'from', 'the', 'group', 'consisting', 'of', 'cigars', 'and', 'ciga-', 'rettes,', 'and', 'being', 'characterized', 'by', 'a', 'non-uniform', 'distribution', 'of', 'tobaceco,,', 'the', 'concentration', 'of', 'tobacco', 'being.', 'greatest', 'on', 'the', 'exterior', 'and', 'progressively', 'continuously', 'decreasing', 'radially', 'from', 'the', 'exterior', 'to', 'the', 'central', 'portion', 'of.', 'the', 'product,', 'the', 'product.', 'having', 'a', 'longitudinally', 'uniform', 'distribution', 'off', 'tobacco.', '(U.S...', '3,260,265)', 'This', 'patent', 'claims', 'a', 'cigarette', 'holder', 'comprising', 'a', 'one-piece', 'elongate', 'member', 'having', 'a', 'smoke', 'passage', 'extending', 'lengthwise', 'therethrough,', 'one', 'end', 'of', 'the', 'member', 'being', 'a', 'bit', 'adapted', 'to', 'be', 'held', 'in', 'the', "smoker's", 'mouth,', 'the', 'portion', 'of', 'the', 'passage', 'at', 'the', 'extreme', 'other', 'end', 'of', 'the', 'mem-', 'ber', 'being', 'generally.', 'cylindrical', 'in', 'form', 'to', 'receive', 'and', 'securely', 'hold!', 'the', 'end', 'of', 'a', 'cigarette,', 'and', 'means', 'imposing', 'a', 'limit', 'to', 'insertion', 'of', 'a', 'cigarette', 'in', 'the', 'cylindrical', 'bore', 'portion,', 'and', 'the', 'member', 'having', 'therein', 'a', 'plurality', 'of', 'circumferentially', 'spaced.', 'openings', 'providing', 'com-', 'munication.', 'between', 'the', 'outside', 'of', 'the', 'member', 'and.', 'a', 'portion', 'of', 'the', 'smoke', 'passage', 'inwardly', 'beyond', 'the', 'limit', 'of', 'cigarette', 'insertion', 'for', 'the', 'purpose', 'of', 'admitting', 'air,', 'each', 'of', 'the', 'open-', 'ings', 'being', 'formed', 'by', 'a', 'longitudinally', 'extending', 'groove', 'in', 'the', 'external', 'wall', 'of', 'the', 'member', 'and', 'a', 'hole', 'communicating', 'with', 'the', 'groove', 'and', 'extending', 'radially', 'through', 'the', 'member.', '(U.S.', '3,260,266)', 'This', 'patent', 'claims', 'that', 'in', 'a', 'self-lighting', 'cigarette', 'having', 'a', 'wrapped', 'tobacco', 'roll', 'including', 'a', 'fore', 'portion,', 'igniter', 'means', 'comprising:', 'an', 'ignition.', 'element', 'consisting', 'of', 'a', 'strip', 'of', 'impregnated', 'paper', 'circumferentially', 'positioned', 'about', 'the:', 'fore', 'portion', 'and', 'having', 'an', 'outer', 'surface', 'and.', 'an', 'inner', 'surface', 'contacting', 'the', 'tobacco', 'in', 'the', 'fore', 'portion', 'with', 'the', 'end', 'face', 'of', 'the', 'tobacco', 'roll', 'exposed', 'to', 'the', 'air;', 'an', 'ignition', 'promoting', 'rib', 'off', 'a', 'composition', 'adapted.', 'to', 'ignite', 'and', 'promptly', 'burn', 'upon', 'frictional', 'engagement', 'with', 'a', 'matching', 'striking', 'surfiace,,', 'the', 'rib', 'being', 'secured', 'against', 'a', 'limited', 'area', 'of', 'the', 'outer', 'surface,', 'the', 'impregnated', 'paper', 'igni-', 'tion', 'element:', 'consists', 'of', 'paper', 'material', 'including,', 'in', 'its', 'weight,', '60', 'to', '65%', 'cellulose;', '25', 'to', '35%', 'nitrocellulose;', 'and', '5', 'to', '10%', 'essentially', 'incombustible', 'matter', 'taken', 'from.', 'the', 'group', 'con-', 'sisting', 'of’', 'light', 'magnesium', 'carbonate:', 'and', 'diatomite,,', 'and', 'impregnated', 'with', 'a', 'mixture', 'of', 'oxygen', 'producing', 'compounds.', 'taken', 'from', 'the', 'group', 'consisting', 'of', 'potassium', 'chlorate', 'and', 'potassium', 'nitrate..', '(U.S.', '3,262,456)', 'OSLEGITO', 'Page', '28']