US2587367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous apparatus for the manufacture of superphosphates and similar products
Assignee: Individual
•
Filing: 1946-01-17
•
Granted: 1952-02-26
•
Expires: 1966-01-17
Abstract
No abstract record available.
Inventors
- 👤 Moritz Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:34
CPC Classifications
C; C05; C05B; C05B1/00; C05B1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE245354C
Cited
US1318063A
Cited
US1376612A
Cited
US1428920A
Cited
US1959973A
Cited
FR790380A
Cited
US2100583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |