US3991760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vaginal medicament dispensing means
Assignee: Procter and Gamble Co
•
Filing: 1975-12-02
•
Granted: 1976-11-16
•
Expires: 1995-12-02
Abstract
Abstract Improved dispensing means for medicaments, contraceptives, and the like, which can be retained in the vagina during intercourse are provided.
Inventors
- 👤 James Lee Drobish
- 👤 Thomas William Gougeon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:09
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/06; A61F6/08; A61K; A61K9/00; A61K9/0012; A61K9/0034; A61K9/0036; A61M; A61M31/00; A61M31/002
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
76 words
An article for use within the vaginal cavity characterized by: a plurality of containers, said containers having walls releasably containing a biologically active agent, said containers being connected by a thin, flexible seal fin in the plane perpendicular to the plane of the article defining a means for holding said article in a substantially circular configuration comprising adjacent containers being carried by said fin in such manner as to provide points of abutment between adjacent containers.
Claim 2
Dependent Claim
76 words
An article for use within the vaginal cavity characterized by: a plurality of containers, said containers having walls releasably containing a biologically active agent, said containers being connected by a thin, flexible seal fin in the plane perpendicular to the plane of the article defining a means for holding said article in a substantially circular configuration comprising adjacent containers being carried by said fin in such manner as to provide points of abutment between adjacent containers.
Claim 3
Dependent Claim
77 words
A controlled release article according to claim 1 especially adapted to maintaining a useful concentration of a biologically active surfactant compound in the vaginal cavity, wherein at least a portion of the walls of said containers comprise a microporous membrane, and wherein said containers are substantially filled with a biologically active agent consisting essentially of an aqueous solution of a micelle-forming surfactant compound, said solution having a concentration above the critical micelle concentration of the surfactant compound.
Claim 4
Dependent Claim
11 words
An article according to claim 2 wherein the containers comprise cellulose.
Claim 5
Dependent Claim
25 words
An article according to claim 3 wherein the surfactant compound is characterized by a critical micelle concentration of at most about 1×10 - 3 Molar.
Claim 6
Dependent Claim
36 words
An article according to claim 4 wherein the combination of surfactant and cellulose membrane exhibits a monomer transport curve having a ratio of slopes S 2 /S 1 in the range of 0 to about 0.1.
Claim 7
Dependent Claim
16 words
An article according to claim 5 wherein the surfactant has an R value greater than 1.
Claim 8
Dependent Claim
15 words
An article according to claim 6 wherein the surfactant is a biocidal or biostatic agent.
Claim 9
Dependent Claim
21 words
A contraceptive article according to claim 7 wherein the surfactant is a member selected from the group consisting of spermicidal surfactants.
Claim 10
Dependent Claim
22 words
A contraceptive article according to claim 8 wherein the surfactant is a nonionic surfactant selected from ethylene oxide condensates of aliphatic alcohols.
Claim 11
Dependent Claim
17 words
A contraceptive article according to claim 9 wherein the nonionic surfactant is C 10 EO 5 .
Claim 12
Dependent Claim
17 words
A contraceptive article according to claim 9 wherein the nonionic surfactant is C 10 EO 6 .
Claim 13
Dependent Claim
48 words
A contraceptive article according to claim 9 wherein the nonionic surfactant is selected from C 10 EO 5 or C 10 EO 6 , or mixtures thereof, and the containers comprise waterswollen microporous cellulose having a dry thickness of ca. 5-25μ and a swollen thickness of ca. 10-50μ.
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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) | 1979-11-16 | 1980-05-17 | 1980-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-16 | 1984-05-17 | 1984-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-16 | 1988-05-17 | 1988-11-16 | $7700.00 | Window Closed / Lapsed |