Patent US2435852A successfully refreshed from Google Patents.
US2435852A
Expired / Lapsed
US
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Flux for use in arc welding
Assignee: Lincoln Electric Co
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Filing: 1942-06-03
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Granted: 1948-02-10
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Expires: 1962-06-03
Abstract
No abstract record available.
Inventors
- 👤 Leonidas K Stringham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:23
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/3607; B23K35/362
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US597112A
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US2043960A
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US2141929A
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US2200737A
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US2191473A
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US2194200A
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US2228639A
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US2258675A
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US2308194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-09 | 1951-08-11 | 1952-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-09 | 1955-08-11 | 1956-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-09 | 1959-08-11 | 1960-02-10 | $7700.00 | Window Closed / Lapsed |