Dispensing system for administering beneficial agent
Patent 4865598 Issued on September 12, 1989. Estimated Expiration Date: 
February 2, 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.
February 2, 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 References 2340037 3732865 3760804 3769805 3845770 3929132 Osmotically driven fluid dispenser Osmotic dispenser Osmotically driven fluid dispenser Process for forming outlet passageways in pills using a laser InventorAssigneeApplicationNo. 07/151384 filed on 02/02/1988US Classes:604/892.1, Osmotic or diffusion pumped device or system424/473With porous, perforated, apertured, or sieved layer (e.g., dialyzing layer, microporous layer, etc.)ExaminersPrimary: Rosenbaum, C. FredAssistant: Colosimo, Mark F. Attorney, Agent or FirmInternational ClassA61K 9/00 (20060101)AbstractA dispensing device is disclosed for delivering a beneficial agent. The device comprises (1) a housing defining an internal space, (2) an expandable composition in the space, (3) an aqueous sensitive beneficial agent formulation in the space, and (4) at least one passageway in the housing for delivering the beneficial agent from the dispensing device. | |
