US2823742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for drying slime, particularly foul slime, and plant for executing the said process
Assignee: L VON ROLL AG
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Filing: 1951-08-13
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Granted: 1958-02-18
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Expires: 1971-08-13
Abstract
No abstract record available.
Inventors
- 👤 Ludin Werner
- 👤 Bion Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:05
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/048; B; B01; B01D; B01D1/00; B01D1/28; B01D1/2887; C02F11/00; C02F11/12; F; F26; F26B; F26B17/00; F26B17/001; F26B17/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US408824A
Cited
US1391510A
Cited
FR533303A
Cited
US1528698A
Cited
US1863109A
Cited
US1980326A
Cited
US2439384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-17 | 1961-08-19 | 1962-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-17 | 1965-08-19 | 1966-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-17 | 1969-08-19 | 1970-02-18 | $7700.00 | Window Closed / Lapsed |