US956792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for emptying superphosphate out of decomposition-chambers.
Assignee: Individual
•
Filing: 1909-02-23
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Granted: 1910-05-03
•
Expires: 1929-02-23
Abstract
No abstract record available.
Inventors
- 👤 Knut Jakob Beskow
- 👤 Melcher Ekedahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:31
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; B01J8/003
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) | 1913-05-02 | 1913-11-01 | 1914-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-05-02 | 1917-11-01 | 1918-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-05-02 | 1921-11-01 | 1922-05-03 | $7700.00 | Window Closed / Lapsed |