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US2932720A
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US
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Metal welding methods
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1957-01-17
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Granted: 1960-04-12
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Expires: 1977-01-17
Abstract
No abstract record available.
Inventors
- 👤 Stohr Jacques Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:04
CPC Classifications
B; B23; B23K; B23K15/00; B23K15/06; B23K15/002; B23K15/0046; H; H01; H01J; H01J37/00; H01J37/02; H01J37/04; H01J37/16; H01J37/30; H01J37/315; Y; Y10; Y10S; Y10S164/00; Y10S164/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |