US2552105A
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
2026-11-07 11:02
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/3603
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
51 words
AN ALUMINUM WELDING FLUX COMPOSED OF NONHYDROSCOPIC SALTS COMPRISING ABOUT 33 PER CENT BY WEIGHT SODIUM CHLORIDE, ABOUT 33 PER CENT BY WEIGHT POTASSIUM CHLORIDE, ABOUT 15 PER CENT LITHIUM FLUORIDE, ABOUT 7.5 PER CENT ALUMINUM FLUORIDE, ABOUT 8 PER CENT MAGNESIUM FLUORIDE, AND ABOUT 3.5 PER CENT ALKALINE EARTH SULFATE.
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) | 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 |