Patent US3211549A successfully refreshed from Google Patents.
US3211549A
Expired / Lapsed
US
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Additional alloys for welding and steel making
Assignee: Yawata Iron and Steel Co Ltd
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Filing: 1961-12-21
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Granted: 1965-10-12
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Expires: 1981-12-21
Abstract
No abstract record available.
Inventors
- 👤 Kusaka Kazuji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:09
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3053
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
AN ADDITION ALLOY FOR USE IN WELDING AND STEEL MAKING, CONSISTING ESSENTIALLY OF 7-45 PERCENT BY WEIGHT OF RARE EARTH METALS, 2-25 PERCENT BY WEIGHT OF CA, 3-15 PERCENT BY WEIGHT OF FE, AND THE BALANCE SI AND IMPURITIES.
Claim 2
Dependent Claim
39 words
AN ADDITION ALLOY FOR USE IN WELDING AND STEEL MAKING, CONSISTING ESSENTIALLY OF 7-45 PERCENT BY WEIGHT OF RARE EARTH METALS, 2-25 PERCENT BY WEIGHT OF CA, 3-15 PERCENT BY WEIGHT OF FE, AND THE BALANCE SI AND IMPURITIES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |