US2536859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for pumping molten metals
Assignee: Ajax Engineering Corp
•
Filing: 1946-05-23
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Granted: 1951-01-02
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Expires: 1966-05-23
Abstract
No abstract record available.
Inventors
- 👤 Tama Mario
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:40
CPC Classifications
B; B22; B22D; B22D41/00; B22D41/005; B22D41/01; H; H02; H02K; H02K44/00; H02K44/02; H02K44/06; H05; H05B; H05B6/00; H05B6/02; H05B6/16; H05B6/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB142110A
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GB126947A
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US1660407A
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US1792449A
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US1944855A
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US2397785A
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US2386369A
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US2339964A
Cited
US2375049A
Cited
US2381523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |