US2802762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding fluxes
Assignee: Solar Aircraft Co
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Filing: 1953-08-19
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Granted: 1957-08-13
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Expires: 1973-08-19
Abstract
No abstract record available.
Inventors
- 👤 Alvin R Stetson
- 👤 Robert J Pyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:16
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/3603
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
AN UNSINTERED WELDING FLUX ESPECIALLY USEFUL IN THE WELDDING AND BRAZING OF ALUMINUM AND MAGNESIUM AND ALLOYS THEREOF, HAVING VEHICLE COMPONENTS CONSTITUTING IN AGGREGATE AT LEAST 84.9% BY WEIGHT THEREOF, SAID VEHICLE COMPONENTS CONSISTING OF SOSDIUM CHLORIDE AND POTASSIUM CHLORIDE, THE SODIUM CHLORIDE BEING AT LEAST EQUAL IN WEIGHT TO THE POTASSIUM CHLORIDE, SAID FLUX HAVING AS THE COMPLEMENTARY COMPONENTS CONSTITUTING THE BALANCE OF INGREDIENTS LITHIUM FLUORIDE A BOUT 6.6% BY WEIGHT, AND CRYOLITE ABOUT 8.5% BY WEIGHT, SAID CRYOLITE HAVING A CONTENT OF SODIUM FLUORIDE OF ABOUT 60% BY WEIGHT AND ALUMINUM FLUORIDE OF ABOUT 40% BY WEIGHT, THE TOTAL FLUORIDE CONTENT BEING NOT MORE THAN 15.1% BY WEIGHT OF SAID FLUX
Claim 2
Dependent Claim
113 words
AN UNSINTERED WELDING FLUX ESPECIALLY USEFUL IN THE WELDDING AND BRAZING OF ALUMINUM AND MAGNESIUM AND ALLOYS THEREOF, HAVING VEHICLE COMPONENTS CONSTITUTING IN AGGREGATE AT LEAST 84.9% BY WEIGHT THEREOF, SAID VEHICLE COMPONENTS CONSISTING OF SOSDIUM CHLORIDE AND POTASSIUM CHLORIDE, THE SODIUM CHLORIDE BEING AT LEAST EQUAL IN WEIGHT TO THE POTASSIUM CHLORIDE, SAID FLUX HAVING AS THE COMPLEMENTARY COMPONENTS CONSTITUTING THE BALANCE OF INGREDIENTS LITHIUM FLUORIDE A BOUT 6.6% BY WEIGHT, AND CRYOLITE ABOUT 8.5% BY WEIGHT, SAID CRYOLITE HAVING A CONTENT OF SODIUM FLUORIDE OF ABOUT 60% BY WEIGHT AND ALUMINUM FLUORIDE OF ABOUT 40% BY WEIGHT, THE TOTAL FLUORIDE CONTENT BEING NOT MORE THAN 15.1% BY WEIGHT OF SAID FLUX
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) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |