US4945923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contraceptive and prophylactic device
Assignee: Individual
•
Filing: 1989-07-10
•
Granted: 1990-08-07
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Expires: 2009-07-10
Abstract
Abstract A contraceptive device adapted to be worn by a female, and which serves to prevent the exchange of body fluids during intercourse, is disclosed. A preferred embodiment of the device has an elongate tubular sheath formed of thin, fluid impermeable material, the sheath having a closed inner end portion and an open outer end portion. A resilient inner ring is connected to the inner end portion for anchoring the same to the cervix of a wearer. An outer ring is connected to the open outer end portion for maintaining the outer end portion in an open configuration.
Inventors
- 👤 Mark I. Evans
- 👤 Frederick C. Greenwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:00
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/06; A61F6/065; Y; Y10; Y10S; Y10S128/00; Y10S128/917; Y10S128/918
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
187 words
A contraceptive device adapted to be worn by a female which serves to prevent the exchange of body fluids during intercourse, comprising: an elongate tubular sheath formed of thin, flexible, fluid impermeable material, said sheath having a closed inner end portion and an open outer end portion; a resilient inner ring directly connected about the entire periphery thereof to said inner end portion of said tubular sheath for mounting said inner end portion to the walls of the vagina so as to overlie the cervix of a wearer, and such that no portion of said closed end of said sheath extends radially outwardly from said inner ring, and an outer ring directly connected about the entire periphery thereof to said open outer end portion for maintaining said outer end portion in an open configuration, said elongate tubular sheath and said outer ring being sized and configured so that said inner ring and said closed inner end portion may be mounted to overlie the cervix and with said outer ring positioned exterior to and adjacent the vaginal introitus of a wearer and so as to permit normal intercourse.
Claim 2
Dependent Claim
187 words
A contraceptive device adapted to be worn by a female which serves to prevent the exchange of body fluids during intercourse, comprising: an elongate tubular sheath formed of thin, flexible, fluid impermeable material, said sheath having a closed inner end portion and an open outer end portion; a resilient inner ring directly connected about the entire periphery thereof to said inner end portion of said tubular sheath for mounting said inner end portion to the walls of the vagina so as to overlie the cervix of a wearer, and such that no portion of said closed end of said sheath extends radially outwardly from said inner ring, and an outer ring directly connected about the entire periphery thereof to said open outer end portion for maintaining said outer end portion in an open configuration, said elongate tubular sheath and said outer ring being sized and configured so that said inner ring and said closed inner end portion may be mounted to overlie the cervix and with said outer ring positioned exterior to and adjacent the vaginal introitus of a wearer and so as to permit normal intercourse.
Claim 3
Dependent Claim
21 words
A contraceptive device as claimed in claim 1, wherein said outer ring is a resilient ring having a generally oval configuration.
Claim 4
Dependent Claim
22 words
A contraceptive device as claimed in claim 1 wherein said outer ring has a circumference greater than that of said inner ring.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-06 | 1994-02-05 | 1994-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-06 | 1998-02-05 | 1998-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-06 | 2002-02-05 | 2002-08-07 | $7700.00 | Window Closed / Lapsed |