Patent US2744183A successfully refreshed from Google Patents.
US2744183A
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Inert gas-shielded arc welding
Assignee: Union Carbide Corp
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Filing: 1952-11-13
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Granted: 1956-05-01
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Expires: 1972-11-13
Abstract
No abstract record available.
Inventors
- 👤 Louis A Conant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:55
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/222; H; H05; H05H; H05H1/00; H05H1/24; H05H1/26; H05H1/32; H05H1/34; H05H1/341
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A REFRACTORY METAL INERT GAS-SHIELDED ARC WELDING ELECTRODE COMPOSED OF 1%-10% OF ADDITIVE MATERIAL WHICH CONTAINS AT LEAST TWO OXIDES SELECTED FROM THE GROUP CONSISTING OF BARIUM OXIDE, CALCIUM OXIDE, CERIUM OXIDE AND YTTRIUM OXIDE, THE BALANCE BEING SUBSTANTIALLY ALL TUNGSTEN.
Claim 2
Dependent Claim
41 words
A REFRACTORY METAL INERT GAS-SHIELDED ARC WELDING ELECTRODE COMPOSED OF 1%-10% OF ADDITIVE MATERIAL WHICH CONTAINS AT LEAST TWO OXIDES SELECTED FROM THE GROUP CONSISTING OF BARIUM OXIDE, CALCIUM OXIDE, CERIUM OXIDE AND YTTRIUM OXIDE, THE BALANCE BEING SUBSTANTIALLY ALL TUNGSTEN.
References Cited (Backward Citations)
US1569095A
Cited
US761379A
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US1843244A
Cited
US1792943A
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US2515559A
Cited
US2540811A
Cited
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 |