Patent CH11975A successfully refreshed from Google Patents.
Patent US2569030A successfully refreshed from Google Patents.
US2569030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparing aluminum welding wire
Assignee: Alcoa Corp
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Filing: 1950-04-19
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Granted: 1951-09-25
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Expires: 1970-04-19
Abstract
No abstract record available.
Inventors
- 👤 Berg Russel V Vanden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:26
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
THE METHOD OF PREPARING ALUMINUM WIRE FOR USE AS ELECTRODE IN AN INERT-GAS-SHIELDED ARC WELDING PROCESS, WHICH METHOD COMPRISES COATING SAID WIRE BY IMMERSION IN AN AQUEOUS SOLUTION OF ALKALI METAL ZINCATE AND THEREAFTER REMOVING THE COATING FORMED IN SAID ZINCATE SOLUTION BY IMMERSION IN AN ACID-STRIPPIN SOLUTION.
Claim 2
Independent Claim
48 words
THE METHOD OF PREPARING ALUMINUM WIRE FOR USE AS ELECTRODE IN AN INERT-GAS-SHIELDED ARC WELDING PROCESS, WHICH METHOD COMPRISES COATING SAID WIRE BY IMMERSION IN AN AQUEOUS SOLUTION OF ALKALI METAL ZINCATE AND THEREAFTER REMOVING THE COATING FORMED IN SAID ZINCATE SOLUTION BY IMMERSION IN AN ACID-STRIPPIN SOLUTION.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |