US3447592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling apparatus for differentially cooling a continuous casting
Assignee: Individual
•
Filing: 1966-04-25
•
Granted: 1969-06-03
•
Expires: 1986-04-25
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Wertli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:16
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/14; B22D11/143; B22D11/04; B22D11/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1491964A
Cited
US2195809A
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US2428660A
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US2515284A
Cited
FR1071355A
Cited
US2946100A
Cited
US2987788A
Cited
US3049769A
Cited
US3292216A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |