US2759084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding composition for depositing soft iron
Assignee: Union Carbide Corp
•
Filing: 1953-09-15
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Granted: 1956-08-14
•
Expires: 1973-09-15
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Jackson
- 👤 Arthur E Shrubsall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:15
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN AN ELECTRIC WELDING PROCESS OF THE SUBMERGED MELT TYPE WHEREIN A BLANKET OF COMMINUTED WELDING MEDIUM COVERS THE WELDING REGION AND A CARBON STEEL WELDING ELECTRODE IS IMMERSED IN SAID WELDING MEDIUM, THE IMPROVEMENT OF REFINING THE WELDING ELECTRODE OF SUBSTANTIALLY ALL THE CARBON CONTENT AND INCIDENTAL IMPURITIES THEREIN TO PRODUCE A WELD DEPOSIT OF SUBSTANTIALLY SOFT, ELEMENTAL IRON, SAID IMPROVEMENT COMPRISING PROVIDING READILY REDUCIBLE OXIDES IN SAID WELDING MEDIUM, SAID WELDING MEDIUM BEING COMPOSED OF 4% TO 32% LIME, 40% TO 75% IRON OXIDE, UP TO 25% ALUMINA AND UP TO 25% CALCIUM FLUORIDE.
Claim 2
Dependent Claim
96 words
IN AN ELECTRIC WELDING PROCESS OF THE SUBMERGED MELT TYPE WHEREIN A BLANKET OF COMMINUTED WELDING MEDIUM COVERS THE WELDING REGION AND A CARBON STEEL WELDING ELECTRODE IS IMMERSED IN SAID WELDING MEDIUM, THE IMPROVEMENT OF REFINING THE WELDING ELECTRODE OF SUBSTANTIALLY ALL THE CARBON CONTENT AND INCIDENTAL IMPURITIES THEREIN TO PRODUCE A WELD DEPOSIT OF SUBSTANTIALLY SOFT, ELEMENTAL IRON, SAID IMPROVEMENT COMPRISING PROVIDING READILY REDUCIBLE OXIDES IN SAID WELDING MEDIUM, SAID WELDING MEDIUM BEING COMPOSED OF 4% TO 32% LIME, 40% TO 75% IRON OXIDE, UP TO 25% ALUMINA AND UP TO 25% CALCIUM FLUORIDE.
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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) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |