Smoking article wrapper for controlling burn rate and method for making same
Patent 5263999 Issued on November 23, 1993. Estimated Expiration Date: 
September 10, 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.
September 10, 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 3915176 Manufacture of an non-laminated paper web having regions of increased thickness Method and applicator for applying glue to a travelling stream of tipping paper Bacterial cellulose as surface treatment for fibrous web High opacity paper containing expanded fiber and mineral pigment Cigarette Patent #: 5074321 InventorsApplicationNo. 757243 filed on 09/10/1991US Classes:131/365, Wrapper or binder131/349With ash retainer or means to prevent or retard burningExaminersPrimary: Millin, V.Assistant: Doyle, J. Attorney, Agent or FirmInternational ClassA24D 001/02AbstractThis invention relates to the control of the burn rate of a cigarette. The burn rate is controlled by the use of a paper wrapper to which regions of cellulosic material is applied and bonded. The cellulosic material is applied during a manufacturing step for the base paper wrapper, either off or on-line of the paper wrapper-forming machine. | |
