Patent US2949426A successfully refreshed from Google Patents.
US2949426A
Expired / Lapsed
US
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Stabilized foam-providing compositions
Assignee: Dow Chemical Co
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Filing: 1957-05-21
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Granted: 1960-08-16
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Expires: 1977-05-21
Abstract
No abstract record available.
Inventors
- 👤 Bernard J Thiegs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:03
CPC Classifications
A; A62; A62D; A62D1/00; A62D1/0071; A62D1/0078; C; C08; C08J; C08J9/00; C08J9/0014; C08J9/0023; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
STABILIZED FOAM-PROVING COMPOSITION COMPRISING WATER IN WHIC THERE IS INCORPORATED BETWEEN ABOUT 0.25 AND 25 WEIGHT PERCENT, BASED ON COMPOSITION WEIGHT, OF A SPUMIFEROUS MATERIAL SELECTED FROM THE GROUP CONSISTING OF (A) WATER-SOLUBLE PROTEINOUS MATERIALS AND (B) WATER-SOLUBLE CELLULOSE ETHER DERIVATIVES THAT ARE RELATIVELY NON-POLAR AND ADAPTED TO PROVIDE A ONE PERCENT AQUEOUS SOLUTION AT ABOUT 25*C. HAVING A SURFACE TENSION LESS THAN ABOUT 60 DYNES PER CENTIMETER AND A MINOR PROPORTION OF BETWEEN ABOUT 0.05 AND 5 WEIGHT PERCENT,
Claim 2
Dependent Claim
80 words
STABILIZED FOAM-PROVING COMPOSITION COMPRISING WATER IN WHIC THERE IS INCORPORATED BETWEEN ABOUT 0.25 AND 25 WEIGHT PERCENT, BASED ON COMPOSITION WEIGHT, OF A SPUMIFEROUS MATERIAL SELECTED FROM THE GROUP CONSISTING OF (A) WATER-SOLUBLE PROTEINOUS MATERIALS AND (B) WATER-SOLUBLE CELLULOSE ETHER DERIVATIVES THAT ARE RELATIVELY NON-POLAR AND ADAPTED TO PROVIDE A ONE PERCENT AQUEOUS SOLUTION AT ABOUT 25*C. HAVING A SURFACE TENSION LESS THAN ABOUT 60 DYNES PER CENTIMETER AND A MINOR PROPORTION OF BETWEEN ABOUT 0.05 AND 5 WEIGHT PERCENT,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |