US2886426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for continuously manufacturing superphosphate
Assignee: Montedison SpA
•
Filing: 1954-05-14
•
Granted: 1959-05-12
•
Expires: 1974-05-14
Abstract
No abstract record available.
Inventors
- 👤 Gera Delfino Vola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:58
CPC Classifications
C; C05; C05B; C05B1/00; C05B1/02; Y; Y10; Y10S; Y10S71/00; Y10S71/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1761991A
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US1837328A
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US1837331A
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US1959973A
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US1982479A
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US1871416A
Cited
US2136793A
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US2448126A
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US2504545A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |