Patent US2743515A successfully refreshed from Google Patents.
US2743515A
Expired / Lapsed
US
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Weld backings and method of welding by use of same
Assignee: General Electric Co
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Filing: 1951-11-09
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Granted: 1956-05-01
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Expires: 1971-11-09
Abstract
No abstract record available.
Inventors
- 👤 Davis Fred
- 👤 Penn William Bernard
- 👤 Puffer Daniel Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:44
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/02; B23K35/0255; B23K9/00; B23K9/02; B23K9/035
Claims Analysis
Total Claims: 0
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US2494920A
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US2473887A
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US2561565A
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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) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |