Tin-titanium complexes as esterification/transesterification catalysts
Patent 4018708 Issued on April 19, 1977. Estimated Expiration Date: 
April 19, 1994. 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 19, 1994. 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 3056818 3714234 3716523 3884832 InventorsApplicationNo. 05/644358 filed on 12/29/1975US Classes:502/152Organic compound including carbon-metal bondExaminersPrimary: Douglas, Winston A.Assistant: Niebling, John F. Attorney, Agent or FirmAbstractComplexes of quadrivalent organotin and quadrivalent organotitanium compounds are effective esterification and transesterification catalysts. |
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