Osmotic device with dual thermodynamic activity
Patent 4612008 Issued on September 16, 1986. Estimated Expiration Date: 
December 21, 2004. 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.
December 21, 2004. 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 ReferencesSelective administration of drug with ocular therapeutic system Osmotic device with compartment for governing concentration of agent dispensed from device System for delivering agent at zero order rate with emerging agent below saturation Dispenser with diffuser Water absorbing fluid dispenser Patent #: 4350271 InventorsApplicationNo. 06/685092 filed on 12/21/1984US Classes:604/892.1, Osmotic or diffusion pumped device or system424/467, Printed, embossed, grooved, or perforated604/285Treating material insert retained in body orificeExaminersPrimary: Kight, JohnAssistant: Moore, M. L. Attorney, Agent or FirmInternational ClassA61K 9/00 (20060101)AbstractAn osmotic system is disclosed comprising a wall formed in at least a part of a semipermeable material that surrounds a compartment. The compartment contains a first osmotic composition comprising a beneficial agent, and a second and different osmotic composition. A passageway in the wall connects the first composition with the exterior of the system.Field of SearchTreating material insert retained in body orifice | |
