Barrier contraceptive
Patent 4832052 Issued on May 23, 1989. Estimated Expiration Date: 
April 10, 2007. 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.
April 10, 2007. 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 454573 594405 3312215 3467090 3703896 InventorApplicationNo. 07/037212 filed on 04/10/1987US Classes:128/839, Intrauterine128/834PessariesExaminersPrimary: Hafer, Robert A.Assistant: Brown, Michael A. Attorney, Agent or FirmInternational ClassesA61F 6/08 (20060101)A61F 6/00 (20060101) AbstractA barrier type contraceptive is an umbrella-like device including a flexible, barrier member with a plurality of radially disposed resilient stiffening members associated therewith. The stiffening members bias the barrier member into a generally planar configuration while allowing for the device to be folded into a generally fusiform shape for insertion. | |
