Dispensing device with drug delivery patterns
Patent 4608048 Issued on August 26, 1986. Estimated Expiration Date: 
December 6, 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 6, 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 ReferencesOsmotic device with compartment for governing concentration of agent dispensed from device Patent #: 4210139 InventorsAssigneeApplicationNo. 06/678744 filed on 12/06/1984US Classes:604/892.1Osmotic or diffusion pumped device or systemExaminersPrimary: Kight, JohnAssistant: Moore, M. L. Attorney, Agent or FirmInternational ClassA61K 9/00 (20060101)AbstractAn osmotic device is disclosed for delivering an agent to a selected environment. The device comprises a semipermeable wall surrounding a first and second compartment for containing the agent, and the device is provided with means for delivering the agent from both compartments through a single osmotic passageway. | |
