Patent US1120268A successfully refreshed from Google Patents.
US4930522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prophylactic device made of rupturable microencapsulated elastomeric material and process for its manufacture
Assignee: Hutchinson SA
•
Filing: 1988-08-15
•
Granted: 1990-06-05
•
Expires: 2008-08-15
Abstract
Abstract A prophylactic device comprising at least two layers of elastomeric material arranged one on top of the other having disposed therebetween microcapsules formed of rupturable walls having enclosed therein at least one pharmacologically active substance. The device may be in the form a contraceptive sheath, finger stall or glove, and protects the user from contamination by various germs, viruses, fungi and other pathogens in the whole area of the body which is covered by the device.
Inventors
- 👤 Rene-Guy Busnel
- 👤 Gilles Argy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:32
CPC Classifications
B; B32; B32B; B32B25/00; B32B25/02; A; A61; A61B; A61B42/00; A61B42/10; A61F; A61F6/00; A61F6/02; A61F6/04; A61L; A61L31/00; A61L31/14; A61L31/16; B29; B29C; B29C41/00; B29C41/02; B29C41/22; B32B25/04; B32B25/042; B32B25/12; A61L2300/00; A61L2300/40; A61L2300/404; A61L2300/60; A61L2300/62; A61L2300/622; B29C41/08; B29C41/10; B29C41/14; B29K; B29K2021/00; B29K2105/00; B29K2105/0005; B29K2105/0076; Y; Y10; Y10S; Y10S2/00; Y10S2/901
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
38 words
A prophylactic device, comprising: at least two layers of elastomeric material arranged one on top the other and microcapsules disposed between said two layers, said microcapsules having rupturable walls and containing therein at least one pharmacologically active substance.
Claim 2
Dependent Claim
38 words
A prophylactic device, comprising: at least two layers of elastomeric material arranged one on top the other and microcapsules disposed between said two layers, said microcapsules having rupturable walls and containing therein at least one pharmacologically active substance.
Claim 3
Dependent Claim
23 words
A prophylactic device, according to claim 1, wherein said microcapsules have a mean diameter in the order of 5 microns to 50 microns.
Claim 4
Dependent Claim
22 words
A prophylactic device, according to claim 1, wherein each of said layers has a thickness of from 10 microns to 50 microns.
Claim 5
Dependent Claim
18 words
A prophylactic device according to claim 3, wherein said device is in the form of a contraceptive sheath.
Claim 6
Dependent Claim
22 words
A prophylactic device according to claim 1, wherein each of said layers has a thickness of from 300 microns to 500 microns.
Claim 7
Dependent Claim
21 words
A prophylactic device according to claim 5, wherein said device is in the form of a finger stall or a glove.
Claim 8
Dependent Claim
31 words
A prophylactic device according to claim 1, wherein said pharmacologically active substance is at least one substance selected from the group consisting of anti-viral, trichomonacidal, fungicidal, germicidal, spermatocidal, and bactericidal substances.
Claim 9
Dependent Claim
17 words
A prophylactic device according to claim 1, wherein said microcapsules further comprise a pharmaceutical excipient and/or preservative.
Claim 10
Dependent Claim
32 words
A prophylactic device according to claim 1, wherein said active substance is non-aqueous, and is dissolved in a non-aqueous solvent having a vaporization point above the normal vulcanization temperature of said elastomer.
Claim 11
Dependent Claim
16 words
A prophylactic device according to claim 9, wherein said solvent is ethylene glycol or silicon oil.
Claim 12
Dependent Claim
22 words
A prophylactic device according to claim 1, wherein said two layers are bridged to each other in the spaces between said microcapsules.
Claim 13
Dependent Claim
21 words
A prophylactic device according to claim 1, wherein said microcapsules are dispersed in a layer comprising a latex of said elastomer.
Claim 14
Dependent Claim
18 words
A prophylactic device according to claim 1, wherein said microcapsules are adhered to one of said two layers.
Claim 15
Dependent Claim
18 words
A prophylactic device according to claim 11 or 12, further comprising at least one additional layer of elastomer.
References Cited (Backward Citations)
FR681821A
Cited
US2586674A
Cited
FR1450673A
Cited
FR1562800A
Cited
US3633216A
Cited
FR2344399A1
Cited
US4385024A
Cited
US4332243A
Cited
EP0079015A1
Cited
EP0089780A2
Cited
EP0126537A2
Cited
US4771482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-06-04 | 1993-12-04 | 1994-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-04 | 1997-12-04 | 1998-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-04 | 2001-12-04 | 2002-06-05 | $7700.00 | Window Closed / Lapsed |