US2623841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spermicidal compositions
Assignee: Julius Schmid Inc
•
Filing: 1950-11-21
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Granted: 1952-12-30
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Expires: 1970-11-21
Abstract
No abstract record available.
Inventors
- 👤 Taub Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:59
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/74; A61K31/765; Y; Y10; Y10S; Y10S424/00; Y10S424/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
AN IMPROVED SPERMICIDAL COMPOSITION EFFECTIVE WITHIN A RELATIVELY SHORT PERIOD OF TIME WITHOUT IRRITATING DELICATE BODY MEMBRANES CONTACTING THEREWITH WHICH COMPRISES A SPERMICIDAL AGENT CONSISTING OF AN ALKOXY POLYOXYETHYLENE GLYCOL ESTER OF A FATTY ACID HAVING AT LEAST SIX CARBON ATOMS AND HAVING THE GENERIC FORMULA CH2OR(CH2OCH2)XCH2OAC, IN WHICH "OR" IS AN ALKYL ETHER GROUPING, R HAVING A CHAIN LENGTH NOT EXCEEDING FOUR ATOMS, "X" IS AN INTEGER OF AT LEAST 2, AND "''A" IS AN ACYL RADICAL OF A FATTY ACID HAVING AT LEAST SIX CARBON ATOMS, A WATER DISPERSIBLE THICKENING AGENT HAVING ADHESIVE ACTION IN THE COMPOSITION, AND A PLASTICIZING AGENT, SAID COMPOSITION BEING ADAPTED FOR USE IN AN AQUEOUS VEHICLE.
Claim 2
Dependent Claim
113 words
AN IMPROVED SPERMICIDAL COMPOSITION EFFECTIVE WITHIN A RELATIVELY SHORT PERIOD OF TIME WITHOUT IRRITATING DELICATE BODY MEMBRANES CONTACTING THEREWITH WHICH COMPRISES A SPERMICIDAL AGENT CONSISTING OF AN ALKOXY POLYOXYETHYLENE GLYCOL ESTER OF A FATTY ACID HAVING AT LEAST SIX CARBON ATOMS AND HAVING THE GENERIC FORMULA CH2OR(CH2OCH2)XCH2OAC, IN WHICH "OR" IS AN ALKYL ETHER GROUPING, R HAVING A CHAIN LENGTH NOT EXCEEDING FOUR ATOMS, "X" IS AN INTEGER OF AT LEAST 2, AND "''A" IS AN ACYL RADICAL OF A FATTY ACID HAVING AT LEAST SIX CARBON ATOMS, A WATER DISPERSIBLE THICKENING AGENT HAVING ADHESIVE ACTION IN THE COMPOSITION, AND A PLASTICIZING AGENT, SAID COMPOSITION BEING ADAPTED FOR USE IN AN AQUEOUS VEHICLE.
References Cited (Backward Citations)
US2467884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |