Patent US3417810A successfully refreshed from Google Patents.
US3417810A
Expired / Lapsed
US
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System for progressive shutdown of cooling water sprays
Assignee: United States Steel Corp
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Filing: 1965-09-01
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Granted: 1968-12-24
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Expires: 1985-09-01
Abstract
No abstract record available.
Inventors
- 👤 John R Tiskus
- 👤 Regis A Vey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:09
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/16; B22D11/22; B22D11/225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1444862A
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GB467475A
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US2206930A
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US2332759A
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US2453527A
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US2804665A
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US3040399A
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US3364977A
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US3283370A
Cited
US3358743A
Cited
US3356061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |