Cigarette and wrapper with controlled puff count
Patent 5263500 Issued on November 23, 1993. Estimated Expiration Date: 
April 12, 2011. 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.
April 12, 2011. 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 Re23794 2538802 2580609 2580610 2673565 2733720 3805802 3885574 Smoking mixture Smokable material and method for preparing same Inventors
ApplicationNo. 684603 filed on 04/12/1991US Classes:131/365, Wrapper or binder131/331, SMOKE SEPARATOR OR TREATER162/139Cigarette paperExaminersPrimary: Millin, V.Assistant: Doyle, J. Attorney, Agent or FirmForeign Patent References
International ClassA24D 001/02AbstractA paper wrapper for a cigarette is prepared using fine particle size calcium carbonate as the mineral filler for the purpose of burn rate, puff count and tar delivery control.Other References
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