Osmotic system with instant drug availability
March 18, 2003. 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 2099402 2921001 3577512 3625214 Osmotic system with laminated wall comprising structurally different semipermeable lamina Nitrofurantoin sustained release tablet Erodible agent releasing device comprising poly(orthoesters) and poly(orthocarbonates) Osmotic releasing system with means for changing release therefrom Prolonged-action multiple-layer tablets Osmotic device for dispensing two different medications Patent #: 4455143 InventorsAssigneeApplicationNo. 06/472333 filed on 03/04/1983US Classes:424/473, With porous, perforated, apertured, or sieved layer (e.g., dialyzing layer, microporous layer, etc.)424/431, Tampon424/436, Anal, rectal (e.g., suppositories, etc.)604/892.1Osmotic or diffusion pumped device or systemExaminersPrimary: Rosenbaum, C. FredAssistant: Vinyard, Sherri E. Attorney, Agent or FirmInternational ClassA61K 9/00 (20060101)AbstractAn osmotic device is disclosed for delivering a beneficial agent. The device comprises a wall surrounding a compartment containing an agent, a passageway in the wall connecting the exterior of the device with the compartment, and (a) an agent in the wall or (b) an agent carried on the wall in the wall. The device delivers the agent from the compartment and the wall. | |
