US3078084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and equipment for the intensive use of oxygen in open hearth furnaces for the production of steel
Assignee: Cornigliano SpA
•
Filing: 1959-10-09
•
Granted: 1963-02-19
•
Expires: 1979-10-09
Abstract
No abstract record available.
Inventors
- 👤 Foresi Mario
- 👤 Ungaro Salvatore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:20
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/46; C21C5/4606; C21C5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
APPARATUS ADAPTED FOR THE INTENSIVE UTILIZATION OF OXYGEN IN AN OPEN-HEARTH FURNACE FOR THE PRODUCTION OF STEEL COMPRISING, IN COMBINATION WITH SAID FURNACE, A DE-
Claim 2
Dependent Claim
25 words
APPARATUS ADAPTED FOR THE INTENSIVE UTILIZATION OF OXYGEN IN AN OPEN-HEARTH FURNACE FOR THE PRODUCTION OF STEEL COMPRISING, IN COMBINATION WITH SAID FURNACE, A DE-
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US1513828A
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US1983927A
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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) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |