Patent US3435879A successfully refreshed from Google Patents.
US3435879A
Expired / Lapsed
US
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Continuous casting method
Assignee: United Engineering and Foundry Co
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Filing: 1967-05-18
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Granted: 1969-04-01
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Expires: 1987-05-18
Abstract
No abstract record available.
Inventors
- 👤 Joseph I Greenberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:08
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/08; B22D11/081; B22D11/083; B22D11/14; B22D11/142
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2698467A
Cited
US2895190A
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US2871534A
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US3290741A
Cited
FR1353998A
Cited
US3324931A
Cited
US3283368A
Cited
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 |