US2598027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fusion joining
Assignee: Alcoa Corp
•
Filing: 1948-05-18
•
Granted: 1952-05-27
•
Expires: 1968-05-18
Abstract
No abstract record available.
Inventors
- 👤 Weir James
- 👤 Charles H Dulin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:58
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2019329A
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US2062706A
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US2158383A
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US2157918A
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US2146333A
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US2166998A
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US2347071A
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US2390789A
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US2389175A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |