US2875104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slag-forming welding electrode
Assignee: Wargons AB
•
Filing: 1955-05-16
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Granted: 1959-02-24
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Expires: 1975-05-16
Abstract
No abstract record available.
Inventors
- 👤 Bergh Sven Sigvard
- 👤 Troberg Bolge
- 👤 Ericsson Curt Anders Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:22
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/365; B23K35/24; B23K35/30; B23K35/3053; B23K35/308; B23K35/3086; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12097; Y10T428/12104; Y10T428/12111; Y10T428/12118; Y10T428/12125; Y10T428/12132
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A WELDING ELECTRODE CONSISTING ESSENTIALLY OF A ROD CONSISTING PRINCIPALLY OF A MENTAL SELECTED FROM THE GROUP CONSISTING OF IRON AND NICKEL AND A SLAG FORMING COATING THEREON, SAID COATING CONTAINING A BRITTLE SIGMA PHASE IRON-CHROMIUM ALLOY HAVING A CHROMIUM CONTENT OF 30-60%, THE INGREDIENTS OF THE COATING AND THE ROD BEING CAPABLE OF FORMING AN ALLOY WHICH DOES NOT CONTAIN SIGMA PHASE WHEN THE ELECTRODE IS USED FOR WELDING.
Claim 2
Dependent Claim
70 words
A WELDING ELECTRODE CONSISTING ESSENTIALLY OF A ROD CONSISTING PRINCIPALLY OF A MENTAL SELECTED FROM THE GROUP CONSISTING OF IRON AND NICKEL AND A SLAG FORMING COATING THEREON, SAID COATING CONTAINING A BRITTLE SIGMA PHASE IRON-CHROMIUM ALLOY HAVING A CHROMIUM CONTENT OF 30-60%, THE INGREDIENTS OF THE COATING AND THE ROD BEING CAPABLE OF FORMING AN ALLOY WHICH DOES NOT CONTAIN SIGMA PHASE WHEN THE ELECTRODE IS USED FOR WELDING.
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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) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |