US2801194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soldering flux composition and method of joining aluminum therewith
Assignee: Olin Corp
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Filing: 1953-04-14
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Granted: 1957-07-30
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Expires: 1973-04-14
Abstract
No abstract record available.
Inventors
- 👤 Richard L Docrr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:33
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3612; B23K35/3615
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
104 words
A SOLDERING FLUX COMPOSITION CONSISTING ESSENTIALLY OF A ZINC CHLORIDE COMPLEX SALT OF A PYRAZOLINE HYDROHALIDE, IN WHICH THE PYRAZOLINE IS SELECTED FROM THE GROUP CONSISTING OF PYRAZOLINE AND PYRAZOLINES SUBSTITUTED WITH AT LEAST ONE SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL SUBSTITUENTS CONTAINING NOT MORE THAN 4 CARBON ATOMS AND PHENYL SUBSTITUENTS, AND ABOUT 10 TO 50 WEIGHT PERCENT, BASED ON THE ZINC CHLORIDE COMPLEX SALT, OF A NITROGEN SLT COMPONENT SELECTED FROM THE GROUP CONSISTING OF AN AMMONIUM HALIDE, A HYDRAZINE HYDROHALIDE AND MIXTURES THEREOF, SAID ZINC CHLORIDE COMPLEX SALT BEING PRESENT IN A PROPORTION EFFECTIVE TO PROVIDE FLUXING ACTIVITY.
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) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |