US2859262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for degasifying liquid metal
Assignee: Dortmund Hoerder Huettenunion AG
•
Filing: 1956-09-04
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Granted: 1958-11-04
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Expires: 1976-09-04
Abstract
No abstract record available.
Inventors
- 👤 Harders Fritz
- 👤 Knuppel Helmut
- 👤 Winkler Otto Christian
- 👤 Brotzmann Karl
- 👤 Kutscher Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:41
CPC Classifications
C; C21; C21C; C21C7/00; C21C7/10; F; F27; F27B; F27B5/00; F27B5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US49051A
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US629008A
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US916314A
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US2054923A
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US2266735A
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US2325521A
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US2372628A
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US2587793A
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US2568578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |