US3221136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and electrode for electric arc welding
Assignee: BOC Group Ltd
•
Filing: 1961-07-07
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Granted: 1965-11-30
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Expires: 1981-07-07
Abstract
No abstract record available.
Inventors
- 👤 Freeth William Earl
- 👤 Mitchell Eric James Montrose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:06
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/02; B23K35/0255; B23K35/0261; B23K35/0272; B23K35/22; B23K35/24; B23K35/30; B23K35/3053; B23K35/36; B23K35/3601; B23K35/3608; B23K35/365; B23K35/38; B23K9/00; B23K9/14; B23K35/3602; B23K35/3603; B23K35/3605; B23K35/3607
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A WELDING ELECTRODE HAVING A CORE WIRE OF MILD STEEL SURROUNDED BY A LOW HYDROGEN, BONDED, COATING HAVING A COMPOSITION WITHIN THE FOLLOWING RANGES:
Claim 2
Dependent Claim
24 words
A WELDING ELECTRODE HAVING A CORE WIRE OF MILD STEEL SURROUNDED BY A LOW HYDROGEN, BONDED, COATING HAVING A COMPOSITION WITHIN THE FOLLOWING RANGES:
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |