US3598742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable foamed materials
Assignee: Celanese Corp
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Filing: 1970-01-09
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Granted: 1971-08-10
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Expires: 1990-01-09
Abstract
Abstract STABLE OPEN-CELLED, FOAMED COMPOSITION S ARE PREPARED BY COMBINING A FIBROUS MATERIAL WITH A WETTING AGENT, A WATE-THICKENING SUBSTANCE AND A FILM OF A WATER-INSOLUBLE POLYMER HAVING A GLASS TRANSITION TEMPERATURE OF LESS THAN 50*C.
Inventors
- 👤 Saunders Eliot Jamison
- 👤 Gene Henry Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:37
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/06; A24D3/08; C; C08; C08J; C08J9/00; C08J9/0085; C08K; C08K7/00; C08K7/02; C08L; C08L1/00; C08L1/08; C08L1/26; C08L1/28; C08L101/00; C08L33/00; C08L33/02; C08L57/00; C08L97/00; C08L97/02; C11; C11D; C11D17/00; C11D17/04; C11D17/049
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) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |