Controlled drug releasing preparations
Patent 3965255 Issued on June 22, 1976. Estimated Expiration Date: 
June 22, 1993. 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.
June 22, 1993. 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 3318769 3325365 3710795 3737521 InventorsAssigneeApplicationNo. 466018 filed on 05/01/1974US Classes:424/450, Liposomes424/472Layered unitary dosage formsExaminersPrimary: Rose, Shep K.Attorney, Agent or FirmInternational ClassA61K 9/28 (20060101)AbstractA drug delivery preparation with controlled release time and rate, comprising a therapeutic agent being encapsulated in or coated by a solvent membrane, as well as a process for the manufacture thereof, are disclosed. | |
