US2744303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trough for transferring molten metal
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1954-07-29
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Granted: 1956-05-08
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Expires: 1974-07-29
Abstract
No abstract record available.
Inventors
- 👤 James E Dore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:09
CPC Classifications
B; B22; B22D; B22D35/00; C; C04; C04B; C04B35/00; C04B35/71; Y; Y10; Y10T; Y10T137/00; Y10T137/9464
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
IN A MOLTEN METAL TRANSFER TROUGH HAVING A METAL SHELL AND A LINING OF REFRACTORY MATERIAL, MEANS FOR APPLYING COMPRESSIVE PRESSURE TO AT LEAST ONE END OF SAID REFRACTORY LINING IN A DIRECTION LONGITUDINALLY WITH RESPECT TO THE TROUGH.
Claim 2
Dependent Claim
39 words
IN A MOLTEN METAL TRANSFER TROUGH HAVING A METAL SHELL AND A LINING OF REFRACTORY MATERIAL, MEANS FOR APPLYING COMPRESSIVE PRESSURE TO AT LEAST ONE END OF SAID REFRACTORY LINING IN A DIRECTION LONGITUDINALLY WITH RESPECT TO THE TROUGH.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |