US2962277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuous process of steel making
Assignee: General Electric Co
•
Filing: 1958-05-15
•
Granted: 1960-11-29
•
Expires: 1978-05-15
Abstract
No abstract record available.
Inventors
- 👤 Morrill Weston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:40
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/56; C21C5/567; C21B; C21B13/00; C21B13/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US137025A
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US1939874A
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US2061741A
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US2302999A
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US2598393A
Cited
US2574764A
Cited
US2693411A
Cited
US2817584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |