US2948948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fly ash reclamation by pelletizing
Assignee: Babcock and Wilcox Co
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Filing: 1956-12-10
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Granted: 1960-08-16
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Expires: 1976-12-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Victor J Duplin
- 👤 Mabel G Ebersole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:03
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/12; C; C04; C04B; C04B18/00; C04B18/02; C04B18/027; C04B18/04; C04B18/06; C04B18/08; C04B18/085; C22; C22B; C22B1/00; C22B1/14; C22B1/24; C22B1/2406; C22B7/00; C22B7/02; Y; Y02; Y02P; Y02P10/00; Y02P10/20; Y02W; Y02W30/00; Y02W30/50; Y02W30/91; Y10; Y10S; Y10S106/00; Y10S106/01; Y10S106/02; Y10S425/00; Y10S425/101
Claims Analysis
Total Claims: 0
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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 |