US2623253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rod casting device
Assignee: NL Industries Inc
•
Filing: 1948-10-27
•
Granted: 1952-12-30
•
Expires: 1968-10-27
Abstract
No abstract record available.
Inventors
- 👤 Harrison George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:14
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/14; B22D11/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US648091A
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US1088171A
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US1800938A
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US1988425A
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US2169893A
Cited
US2163967A
Cited
US2187720A
Cited
US2264288A
Cited
US2405355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |