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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
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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.

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

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