US2552104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum welding fluxes
Assignee: Alcoa Corp
•
Filing: 1949-01-15
•
Granted: 1951-05-08
•
Expires: 1969-01-15
Abstract
No abstract record available.
Inventors
- 👤 Mike A Miller
- 👤 Warren E Haupin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:05
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/3603
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US922523A
Cited
US1550280A
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US1538355A
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US2112578A
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US2357125A
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US2337714A
Cited
US2456609A
Cited
GB579635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |