Wrapper for smoking articles and method for preparing same
Patent 4998542 Issued on March 12, 1991. Estimated Expiration Date: February 23, 2009. 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.
A wrapper for smoking articles having controllable combustion characteristics. The wrapper comprises cigarette paper and an amorphous inorganic network formed from a gel.
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February 23, 2009. 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.
