Patent US3170862A successfully refreshed from Google Patents.
US3170862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced concrete structure in an electrolytic furnace house for producing aluminum
Assignee: Rio Tinto Switzerland AG
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Filing: 1961-10-10
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Granted: 1965-02-23
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Expires: 1981-10-10
Abstract
No abstract record available.
Inventors
- 👤 Hegland Reidar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:51
CPC Classifications
F; F16; F16M; F16M5/00; C; C25; C25C; C25C3/00; C25C3/06; C25C3/08; C25C3/10; E; E04; E04H; E04H5/00; E04H5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A FURNACE HOUSE FOR FURNACE POTS USED IN THE ELECTROLYTIC PRODUCTION OF ALUMINUM, COMPRISING SIDE WALLS, AND MEANS FOR SUPPORTING A PLURALITY OF FURNACE POTS BETWEEN SAID WALLS COMPRISING A FOUNDATION STRUCTURE, A FLOOR SUPPORTING REINFORCED CONCRETE STRUCTURE SUPPORTED ON SAID FOUNDATION STRUCTURE AND CONSTITUTING A PLURALITY OF SECTIONS EXTENDING BETWEEN SAID WALLS AND SAID FURNACE POTS, MEANS FOR SUPPORTING THE FURNACE POTS ON SAID SECTIONS, AND MEAND ELECTRICALLY INSULATING SAID SELECTIONS IN ALL DIRECTIONS FROM EACH OTHER, FROM THE EARTH, FROM SAID FOUNDATION STRUCTURE AND FROM SAID FURNACE WALLS.
Claim 2
Dependent Claim
90 words
A FURNACE HOUSE FOR FURNACE POTS USED IN THE ELECTROLYTIC PRODUCTION OF ALUMINUM, COMPRISING SIDE WALLS, AND MEANS FOR SUPPORTING A PLURALITY OF FURNACE POTS BETWEEN SAID WALLS COMPRISING A FOUNDATION STRUCTURE, A FLOOR SUPPORTING REINFORCED CONCRETE STRUCTURE SUPPORTED ON SAID FOUNDATION STRUCTURE AND CONSTITUTING A PLURALITY OF SECTIONS EXTENDING BETWEEN SAID WALLS AND SAID FURNACE POTS, MEANS FOR SUPPORTING THE FURNACE POTS ON SAID SECTIONS, AND MEAND ELECTRICALLY INSULATING SAID SELECTIONS IN ALL DIRECTIONS FROM EACH OTHER, FROM THE EARTH, FROM SAID FOUNDATION STRUCTURE AND FROM SAID FURNACE WALLS.
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |