US2700849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foaming bed for the foaming of fiery molten masses
Assignee: HUTTENWERK RHEINHAUSEN AG
•
Filing: 1952-04-15
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Granted: 1955-02-01
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Expires: 1972-04-15
Abstract
No abstract record available.
Inventors
- 👤 Gunter A Klotzbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:52
CPC Classifications
C; C21; C21B; C21B3/00; C21B3/04; C21B3/06; C21B2400/00; C21B2400/02; C21B2400/022; C21B2400/024; C21B2400/05; C21B2400/062; Y; Y02; Y02W; Y02W30/00; Y02W30/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US451652A
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US904060A
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US824340A
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US951199A
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US1098035A
Cited
US1421989A
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US1666790A
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US2464858A
Cited
US2465559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-31 | 1958-08-02 | 1959-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-31 | 1962-08-02 | 1963-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-31 | 1966-08-02 | 1967-02-01 | $7700.00 | Window Closed / Lapsed |