US2509079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casting metal
Assignee: New Jersey Zinc Co
•
Filing: 1946-06-25
•
Granted: 1950-05-23
•
Expires: 1966-06-25
Abstract
No abstract record available.
Inventors
- 👤 Trewin Charles Sydney
- 👤 Robert A Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:34
CPC Classifications
B; B22; B22D; B22D39/00; B22D39/02; B22D17/00; B22D17/20; B22D17/32; B22D21/00; B22D21/02; B22D21/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2104406A
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US308405A
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US623053A
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US1336768A
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US113249A
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US729755A
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US1033254A
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US1367059A
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US1792545A
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US1898722A
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US1809623A
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US2032016A
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US2064734A
Cited
US2246907A
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US2290083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-22 | 1953-11-21 | 1954-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-22 | 1957-11-21 | 1958-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-22 | 1961-11-21 | 1962-05-23 | $7700.00 | Window Closed / Lapsed |