Process for the production of microbial cellulose
Patent 4929550 Issued on May 29, 1990. Estimated Expiration Date: 
January 19, 2008. 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.
January 19, 2008. 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 ReferencesCellulose fermentation process Production of a cellulose-synthetic polymer composite fiber Method for producing cellulosic fibers and microcrystalline cellulose Patent #: 4745058 InventorAssigneeApplicationNo. 145819 filed on 01/19/1988US Classes:435/101, Polysaccharide of more than five saccharide radicals attached to each other by glycosidic bonds435/823AcetobacterExaminersPrimary: Lilling, Herbert J.Attorney, Agent or FirmForeign Patent References
International ClassesC12P 019/04C12R 001/02 Foreign Application Priority Data1987-01-22 GBAbstractA process for the production of extra-cellular microbial cellulose having the following 4 steps: (a) a growth step in which a bacterium in cultured in stirred batch culture until the carbon source present is substantially exhausted, (b) an accumulation step in which the carbon source is supplied continuously to the culture, (c) a removal step and (d) a separation step. The microbial cellulose produced by the process is readily usable as a bulking agent in foods or as a tabletting aid.Other References
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