Vaginal device
Patent 4564362 Issued on January 14, 1986. Estimated Expiration Date: 
July 7, 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.
July 7, 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 2319481 2541103 2759931 2774709 2902484 2927110 3084689 3762414 Vaginal device Patent #: 4393871 InventorApplicationNo. 06/511759 filed on 07/07/1983US Classes:604/286, Including foraminous material (e.g., sponge, etc.) or fibrous element other than withdrawal cord604/369, Foam or cellular structure material604/515, To or from the female reproductory tract604/904TAMPONSExaminersPrimary: Grieb, William H.Attorney, Agent or FirmInternational ClassesA61K 9/00 (20060101)A61F 6/08 (20060101) A61F 6/00 (20060101) AbstractA vaginal device adapted for use as a disposable female contraceptive or as a disposable article for controllably dispensing drugs is provided comprising an outermost layer of resilient, compressible open-celled polymeric foam. Affixed to the outermost foam layer is a non-porous film layer made of a liquid proof, soft elastomeric material. Affixed to the non-porous film layer is another layer of open-celled polymeric foam. The intermediate film layer provides a barrier between the two foam layers. The outermost and innermost foam layers are formed from foams differing basically in density and/or number of pores per inch, with the more dense or smaller pored foam constituting the outermost layer, the outermost layer being adapted to lie against the cervix of the uterus and block the upper vaginal vault. | |
