US2630916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion of metals
Assignee: Olin Industries Inc
•
Filing: 1947-09-19
•
Granted: 1953-03-10
•
Expires: 1967-09-19
Abstract
No abstract record available.
Inventors
- 👤 Blair Emile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:27
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/02; B21C23/04; B21C23/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US181356A
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US1664990A
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US922585A
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FR399098A
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US1413284A
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US1376376A
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US1468092A
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US2264266A
Cited
US2363635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |