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US3530929A
Expired / Lapsed
US
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Apparatus for the continuous casting of metal
Assignee: Dortmund Hoerder Huettenunion AG
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Filing: 1968-04-03
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Granted: 1970-09-29
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Expires: 1988-04-03
Abstract
No abstract record available.
Inventors
- 👤 Fritz Harders
- 👤 Franz Oeters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:50
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/10; B22D11/11; B22D11/112; B22D23/00; B22D23/003
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) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |