Patent US3479742A successfully refreshed from Google Patents.
Patent US3681253A successfully refreshed from Google Patents.
US3681253A
Expired / Lapsed
US
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Composition and method of stabilizing foam
Assignee: GE Chemicals Inc
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Filing: 1968-04-26
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Granted: 1972-08-01
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Expires: 1988-04-26
Abstract
Abstract A METHOD OF INCREASING AND STABILIZING FOAM BY ADDING A MALEIC ANHYDRIDE-CONJUGATED DIENE COPOLYMER OF SALT THEREOF TO A FOAM FORMING COMPOSITION PRIOR TO FORMATION OF THE FOAM.
Inventors
- 👤 Ralph P Arthur
- 👤 M Joanne Belden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:43
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/02; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/046; A61K8/18; A61K8/72; A61K8/81; A61K8/8194; B; B03; B03D; B03D1/00; B03D1/001; B03D1/004; B03D1/016; C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0094; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3765; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |