US3192076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding flux
Assignee: General Dynamics Corp
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Filing: 1961-07-28
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Granted: 1965-06-29
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Expires: 1981-07-28
Abstract
No abstract record available.
Inventors
- 👤 John T Ballass
- 👤 Bernard J Freedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:44
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/362; B23K35/3601; B23K35/3607
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A WELDING FLUX CONSISTING ESSENTIALLY OF, BY WEIGHT, ABOUT 2 TO 24% LITHIUM FLUORIDE, 5 TO 20% CALCIUM FLUORIDE, UP TO 30% ALUMINUM OXIDE, UP TO 50% MANGANESE OXIDE, UP TO 40% MAGNESIUM OXIDE, AND THE BALANCE BEING ESSENTIALLY SILICON DIOXIDE AND CALCIUM OCIDE IN THE APPROXIMATE WEIGHT RATIO OF SILICON DIOXIDE TO CALCIUM OXIDE WITHIN THE RANGE OF ABOUT 4:1 TO ABOUT 1:1.
Claim 2
Dependent Claim
64 words
A WELDING FLUX CONSISTING ESSENTIALLY OF, BY WEIGHT, ABOUT 2 TO 24% LITHIUM FLUORIDE, 5 TO 20% CALCIUM FLUORIDE, UP TO 30% ALUMINUM OXIDE, UP TO 50% MANGANESE OXIDE, UP TO 40% MAGNESIUM OXIDE, AND THE BALANCE BEING ESSENTIALLY SILICON DIOXIDE AND CALCIUM OCIDE IN THE APPROXIMATE WEIGHT RATIO OF SILICON DIOXIDE TO CALCIUM OXIDE WITHIN THE RANGE OF ABOUT 4:1 TO ABOUT 1:1.
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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |