US3587591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Obstetrical instrument for rupturing the amniotic sac
Assignee: Individual
•
Filing: 1968-11-12
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Granted: 1971-06-28
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Expires: 1988-11-12
Abstract
Abstract AN OBSTERTRICAL INSTRUMENT FORMED INTEGRAL WITH A FINGER OF A SURGICAL GLOVE INCLUDING A FLEXIBLE SHEATH ALONG THE BACK SURFACE OF A FINGER OF THE GLOVE, A MOVABLE FLEXIBLE BLADE ENCLOSED IN THE SHEATH AND EXTENDABLE BY A BUTTON PROJECTING THROUGH A SLOT ALONG THE TOP FACE OF THE SHEATH ENGAGEABLE BY THE PALM SIDE OF AN ADJACENT FINGER, THE BLADE HAVING AN EXPOSED POINT WHEN EXTENDED FOR RUPTURING THE AMNIOTIC MEMBRANE OF A PREGNANT WOMAN TO RELEASE THE AMNIOTIC FLUID PREPARATORY TO DELIVERY OF THE BABY.
Inventors
- 👤 Raymond D Satterwhite
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:46
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/42; A61B17/4208
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |