Patent US3587149A successfully refreshed from Google Patents.
US3587149A
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Furnace installation for continuously descaling a metal band
Assignee: DEUTSCHE GOLD-UND SILBER-SCHEIDANSTALT VORMALS ROESSLER
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Filing: 1969-08-18
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Granted: 1971-06-28
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Expires: 1989-08-18
Abstract
Abstract A TROUGH IS INCLINED IN A TANK OF MELTED ALKALI-HYDROXIDE AND HAS ITS UPPER INLET END ABOVE THE ALKALI-HYDROXIDE. A METAL BAND IS DESCALED BY BEING PULLED THROUGH MOLTEN SODIUM CONTAINED IN THE TROUGH.
Inventors
- 👤 Erwin Schumann
- 👤 Rudolf Kuhn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:09
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/28; C23G3/00; C23G3/02; C23G3/021; Y; Y10; Y10T; Y10T29/00; Y10T29/45; Y10T29/4533
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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |