Patent US4004591A successfully refreshed from Google Patents.
US4004591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Birth control device
Assignee: Individual
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Filing: 1975-11-17
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Granted: 1977-01-25
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Expires: 1995-11-17
Abstract
Abstract A prophylactic or contraceptive device made of membraneous material having a generally tubular configuration with a closed end which includes a thicker, reenforced tip. At its open end, there are two flaps extending transversely to the axis of the device with a scalloped intermediate portion. The flaps are maintained in their transverse position by reenforced or thickened edges.
Inventors
- 👤 Max G. Freimark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:41
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/06; A61F6/065
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
106 words
A contraceptive device to be worn internally by women comprising a generally tubular member made of an integral moisture proof membraneous compliant material and having an open end and a closed end, said tubular member having a cross-section dimensioned to fit snugly within the vaginal canal of the wearer, said cross section being substantially constant from said open end to a region adjacent said closed end, the open end of said tubular member having two flaps normally extending outwardly and generally transversely to the axis of said device, said flaps being contoured to cover the labia majora of the wearer and the epidermal area adjacent thereto.
Claim 2
Dependent Claim
106 words
A contraceptive device to be worn internally by women comprising a generally tubular member made of an integral moisture proof membraneous compliant material and having an open end and a closed end, said tubular member having a cross-section dimensioned to fit snugly within the vaginal canal of the wearer, said cross section being substantially constant from said open end to a region adjacent said closed end, the open end of said tubular member having two flaps normally extending outwardly and generally transversely to the axis of said device, said flaps being contoured to cover the labia majora of the wearer and the epidermal area adjacent thereto.
Claim 3
Dependent Claim
18 words
The device according to claim 1 wherein said open end also includes at least one scalloped edge portion.
Claim 4
Dependent Claim
28 words
The device according to claim 2 wherein there are at least two of said scalloped portions disposed generally opposite one another on the edge of said open end.
Claim 5
Dependent Claim
25 words
The device according to claim 1 wherein said closed end is reenforced by having a wall thickness greater than the side walls of said device.
Claim 6
Dependent Claim
27 words
The device according to claim 1 wherein the edges of said open end are reenforced by having a thickness greater than the side walls of said device.
Claim 7
Dependent Claim
25 words
The device according to claim 1 wherein the edges of said open end are reenforced by a relatively rigid elongated member formed within said edge.
Claim 8
Dependent Claim
23 words
The device according to claim 2 wherein said scalloped portion is shaped and dimensioned to expose the clitoris of the wearer during use.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-25 | 1980-07-26 | 1981-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-25 | 1984-07-26 | 1985-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-25 | 1988-07-26 | 1989-01-25 | $7700.00 | Window Closed / Lapsed |