Patent US2097344A successfully refreshed from Google Patents.
US2097344A
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Metallurgical slag reaction
Assignee: Vacuumschmelze GmbH and Co KG
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Filing: 1933-12-05
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Granted: 1937-10-26
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Expires: 1953-12-05
Abstract
No abstract record available.
Inventors
- 👤 Rohn Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:55
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/34; C; C21; C21C; C21C7/00; C21C7/04; C21C7/06; C22; C22B; C22B4/00; F; F27; F27B; F27B14/00; F27B14/06; F27B14/061; H05B6/22; H05B6/24; F27B14/08; F27B2014/0887; Y; Y02; Y02P; Y02P10/00; Y02P10/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-10-25 | 1941-04-26 | 1941-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-10-25 | 1945-04-26 | 1945-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-10-25 | 1949-04-26 | 1949-10-26 | $7700.00 | Window Closed / Lapsed |