US3340105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding flux
Assignee: General Dynamics Corp
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Filing: 1965-04-29
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Granted: 1967-09-05
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Expires: 1985-04-29
Abstract
No abstract record available.
Inventors
- 👤 John T Ballass
- 👤 Bernard J Freedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:42
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/3607
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A WELDING FLUX IN WHICH THE FLUXING INGREDIENTS CONSIST ESSENTIALLY OF, BY WEIGHT, FROM ABOUT 5% TO ABOUT 16% ALUMINUM OXIDE, FROM ABOUT 3% TO ABOUT 15% MANGANOUS OXIDE, UP TO ABOUT 40% CALCIUM FLUORIDE, FROM ABOUT 15% TO ABOUT 40% SODIUM FLUOSILICATE, AND THE BALANCE BEING ESSENTIALLY SILICON DIOXIDE AND CALCIUM OXIDE IN AN APPROXIMATE RATIO BY WEIGHT OF SILICON DIOXIDE TO CALCIUM OXIDE WITHIN THE RANGE OF ABOUT 2:1 TO ABOUT 1:1, THE CALCIUM FLUORIDE AND SODIUM FLUOSILICATE BEING PRESENT IN AMOUNTS AGGREGATING NOT SUBSTANTIALLY LESS THAN ABOUT 20% BY WEIGHT.
Claim 2
Dependent Claim
93 words
A WELDING FLUX IN WHICH THE FLUXING INGREDIENTS CONSIST ESSENTIALLY OF, BY WEIGHT, FROM ABOUT 5% TO ABOUT 16% ALUMINUM OXIDE, FROM ABOUT 3% TO ABOUT 15% MANGANOUS OXIDE, UP TO ABOUT 40% CALCIUM FLUORIDE, FROM ABOUT 15% TO ABOUT 40% SODIUM FLUOSILICATE, AND THE BALANCE BEING ESSENTIALLY SILICON DIOXIDE AND CALCIUM OXIDE IN AN APPROXIMATE RATIO BY WEIGHT OF SILICON DIOXIDE TO CALCIUM OXIDE WITHIN THE RANGE OF ABOUT 2:1 TO ABOUT 1:1, THE CALCIUM FLUORIDE AND SODIUM FLUOSILICATE BEING PRESENT IN AMOUNTS AGGREGATING NOT SUBSTANTIALLY LESS THAN ABOUT 20% BY WEIGHT.
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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |