US2638665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of welding stainless steel
Assignee: Standard Oil Development Co
•
Filing: 1950-10-23
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Granted: 1953-05-19
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Expires: 1970-10-23
Abstract
No abstract record available.
Inventors
- 👤 Prentiss S Viles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:10
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/362
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A METHOD OF WELDING A CHROME-NICKEL STAINLESS STEEL WHICH INCLUDES THE STEPS OF APPLYING A MIXTURE OF A CONVENTIONAL WELDING FLUX CONTAINING ELEMENTARY SULFUR IN AN AMOUNT IN THE RANGE BETWEEN 0.25% AND 25% BY WEIGHT, TO TWO ADJACENT BOUNDARIES OF BODIES OF SAID STEEL AND WELDING SAID ADJACENT BOUNDARIES IN THE PRESENCE OF SAID MIXTURE.
Claim 2
Independent Claim
56 words
A METHOD OF WELDING A CHROME-NICKEL STAINLESS STEEL WHICH INCLUDES THE STEPS OF APPLYING A MIXTURE OF A CONVENTIONAL WELDING FLUX CONTAINING ELEMENTARY SULFUR IN AN AMOUNT IN THE RANGE BETWEEN 0.25% AND 25% BY WEIGHT, TO TWO ADJACENT BOUNDARIES OF BODIES OF SAID STEEL AND WELDING SAID ADJACENT BOUNDARIES IN THE PRESENCE OF SAID MIXTURE.
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Cited
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GB467450A
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US2141929A
Cited
GB541446A
Cited
US2231917A
Cited
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Cited
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Cited
US2473601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |