US3435992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pouring nozzle for continuous casting liquid metal or ordinary steel
Assignee: TISDALE CO Inc
•
Filing: 1966-03-11
•
Granted: 1969-04-01
•
Expires: 1986-03-11
Abstract
No abstract record available.
Inventors
- 👤 Norman F Tisdale
- 👤 Rowland A Tisdale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:04
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/10; H05B6/14; B; B22; B22D; B22D11/00; B22D11/16; B22D11/18; B22D41/00; B22D41/50; B22D41/60; F; F27; F27D; F27D3/00; F27D3/15; F27D3/1509; F27D3/1518; F27D3/1527
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1381500A
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US1920300A
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US2770022A
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US2896936A
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US3048972A
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US3129560A
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US3197824A
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US3157026A
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US3268958A
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US3207365A
Cited
US3331909A
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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) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |