Patent US3511261A successfully refreshed from Google Patents.
US3511261A
Expired / Lapsed
US
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Controllable teeming valve for steel-casting ladles
Assignee: Paderwerk Gebr Benteler
•
Filing: 1965-11-24
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Granted: 1970-05-12
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Expires: 1985-11-24
Abstract
No abstract record available.
Inventors
- 👤 Klaus Bick
- 👤 Berhard Tinnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:53
CPC Classifications
B; B22; B22D; B22D41/00; B22D41/14; B22D41/22; B22D41/24; B22D41/44; B22D41/46; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6065; Y10T137/6072
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
28 words
WITH RESPECT TO THE AXIS OF THE FUNNEL, A FREE OPENING OF AT LEAST 150 SQUARES CENTIMETERS AND A NECK PORTION OF AT LEAST 30 MILLIMETERS IN LENGTH.
References Cited (Backward Citations)
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FR1155082A
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US3352465A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |