Patent US2918404A successfully refreshed from Google Patents.
US2918404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid compressed amino acid spermicidal vehicle
Assignee: Ortho Pharmaceutical Corp
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Filing: 1956-07-30
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Granted: 1959-12-22
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Expires: 1976-07-30
Abstract
No abstract record available.
Inventors
- 👤 William C Mende
- 👤 John L Seidel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:17
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0034; A61K9/20; A61K9/2004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A DRY, SOLID, COMPRESSED, PHARMACEUTIAL VEHICLE WHICH DISINTEGRATES RAPIDLY WHEN INTRODUCED INTRAVAGINALLY AND WILL DISSOLVE IN WATER TO GIVE AN ACID PH COMPRISING IN COMBINATION, AT LEAST ONE AMINO ACID, THE TOTAL WEIGHT OF AMINO ACIDS PRESENT IN SAID VEHICLE AMOUNTING TO ABOUT 65 TO ABOUT 99.5 PERCENT AND ABOUT 0.5 TO ABOUT 30 PERCENT OF A WATER-INSOLUBLE WICKING AGENT CAPABLE OF ABSORBING ABOUT 6 PERCENT MOISTURE AT 65 PERCENT RELATIVE HUMIDITY AND 70*F.
Claim 2
Dependent Claim
74 words
A DRY, SOLID, COMPRESSED, PHARMACEUTIAL VEHICLE WHICH DISINTEGRATES RAPIDLY WHEN INTRODUCED INTRAVAGINALLY AND WILL DISSOLVE IN WATER TO GIVE AN ACID PH COMPRISING IN COMBINATION, AT LEAST ONE AMINO ACID, THE TOTAL WEIGHT OF AMINO ACIDS PRESENT IN SAID VEHICLE AMOUNTING TO ABOUT 65 TO ABOUT 99.5 PERCENT AND ABOUT 0.5 TO ABOUT 30 PERCENT OF A WATER-INSOLUBLE WICKING AGENT CAPABLE OF ABSORBING ABOUT 6 PERCENT MOISTURE AT 65 PERCENT RELATIVE HUMIDITY AND 70*F.
References Cited (Backward Citations)
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Cited
US2219535A
Cited
GB487258A
Cited
DE714870C
Cited
US2467884A
Cited
US2484637A
Cited
US2602042A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |