US2961351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated arc welding electrode wire
Assignee: Westinghouse Electric Corp
•
Filing: 1955-12-02
•
Granted: 1960-11-22
•
Expires: 1975-12-02
Abstract
No abstract record available.
Inventors
- 👤 Howard C Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:21
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/40
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
THE METHOD OF PRODUCING AN ARC-WELDING ELECTRODE WHICH COMPRISES ROUGHENING THE SURFACE OF A WIRE BY CONTINUOUSLY PASSING SAID WIRE THROUGH A SURFACE ROUGHENER, DEPOSITING A LAYER OF ARC-STABILIZING COMPOUND ON THE ROUGHENED SURFACE OF SAID WIRE BY PASSING IT THROUGH A SLIP OF SAID COMPOUND CONSISTING OF A POWDER OF SAID COMPOUND MIXED IN A READILY EVAPORATING MEDIUM WHICH
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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) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |