US3179736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum reduction pot
Assignee: Reynolds Metals Co
•
Filing: 1962-05-29
•
Granted: 1965-04-20
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Expires: 1982-05-29
Abstract
No abstract record available.
Inventors
- 👤 James A Ramsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:44
CPC Classifications
F; F27; F27D; F27D11/00; C; C25; C25C; C25C3/00; C25C3/06; C25C3/08; Y; Y02; Y02P; Y02P10/00; Y02P10/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
AN ALUMINUM REDUCTION POT COMPRISING A SHELL, A GRAPHITE CATHODE BLOCK SUPORTED IN SAID SHELL, AND A RESILIENT METAL COLLECTOR BAR EXTENDING THROUGH SAID SHELL AND ELECTRICALLY CONNECTED WITH SAID BLOLK, SAID BLOCK CONTAINING A SOCKET CONVERGING INWARDLY FROM A SURFACE THEREOF, SAID COLLECTOR BAR HAVING A A CONVERGENT END COMPLEMENTING SAID SOCKET AND RECEIVED THEREIN, SAID CONVERGENT END CONTAINING A SLOT EXTENDING THROUGH THE LENGTH THEREOF.
Claim 2
Dependent Claim
67 words
AN ALUMINUM REDUCTION POT COMPRISING A SHELL, A GRAPHITE CATHODE BLOCK SUPORTED IN SAID SHELL, AND A RESILIENT METAL COLLECTOR BAR EXTENDING THROUGH SAID SHELL AND ELECTRICALLY CONNECTED WITH SAID BLOLK, SAID BLOCK CONTAINING A SOCKET CONVERGING INWARDLY FROM A SURFACE THEREOF, SAID COLLECTOR BAR HAVING A A CONVERGENT END COMPLEMENTING SAID SOCKET AND RECEIVED THEREIN, SAID CONVERGENT END CONTAINING A SLOT EXTENDING THROUGH THE LENGTH THEREOF.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |