US2789924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low alloy coated electrodes with low carbon core
Assignee: Babcock and Wilcox Co
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Filing: 1954-06-08
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Granted: 1957-04-23
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Expires: 1974-06-08
Abstract
No abstract record available.
Inventors
- 👤 Nicholas C Jessen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:14
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3053; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12104; Y10T428/12111; Y10T428/12125; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2951; Y10T428/2955
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
IN A WELDING ROD OF THE TYPE HAVING A FUSIBLE METAL CORE WITH A LOW HYDROGEN TYPE MINERAL COATING THEREON, THE COATING HAVING INCORPORATED THEREIN ALLOYING INGREDIENTS INCLUDING MO AND AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF CR, MN, SI, NI, AND V WITH THE AMOUNT OF ANY ONE ALLOYING INGREDIENT NOT EXCEEDING 10%; THE IMPROVEMENT COMPRISING A CORE CONSISTING ESSENTIALLY OF SUBTANTIALLY PURE IRON HAVING A CARBON CONTENT NOT EXCEEDING 0.05%.
Claim 2
Dependent Claim
73 words
IN A WELDING ROD OF THE TYPE HAVING A FUSIBLE METAL CORE WITH A LOW HYDROGEN TYPE MINERAL COATING THEREON, THE COATING HAVING INCORPORATED THEREIN ALLOYING INGREDIENTS INCLUDING MO AND AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF CR, MN, SI, NI, AND V WITH THE AMOUNT OF ANY ONE ALLOYING INGREDIENT NOT EXCEEDING 10%; THE IMPROVEMENT COMPRISING A CORE CONSISTING ESSENTIALLY OF SUBTANTIALLY PURE IRON HAVING A CARBON CONTENT NOT EXCEEDING 0.05%.
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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) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |