Patent US2690408A successfully refreshed from Google Patents.
US2690408A
Expired / Lapsed
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Solder flux compositions containing an aryl biguanide hydrochloride
Assignee: RCA Corp
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Filing: 1951-01-18
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Granted: 1954-09-28
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Expires: 1971-01-18
Abstract
No abstract record available.
Inventors
- 👤 Pessel Leopold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:09
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3612
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A SOLDERING FLUX COMPOSITION COMPRISING ABOUT 5% TO ABOUT 99% BY WEIGHT OF AN ARYL BIGUANIDE HYDROCHLORIDE AND THE REMAINDER CONSISTING ESSENTIALLY OF A SPREADING AGENT SELECTED FROM THE CLASS CONSISTING OF SOLID NATURAL RESINS, WAXES, AND RELATIVELY INERT, HIGH BOILING ORGANIC LIQUIDS, SELECTED FROM THE GROUP CONSISTING OF HEPTADECANOL, DI-TERTIARY AMYL PHENOXY ETHANOL, AMYL NAPHTHALENE, DODECYL TOLUENE, FLUID SILICONES AND POLYBUTENE.
Claim 2
Dependent Claim
62 words
A SOLDERING FLUX COMPOSITION COMPRISING ABOUT 5% TO ABOUT 99% BY WEIGHT OF AN ARYL BIGUANIDE HYDROCHLORIDE AND THE REMAINDER CONSISTING ESSENTIALLY OF A SPREADING AGENT SELECTED FROM THE CLASS CONSISTING OF SOLID NATURAL RESINS, WAXES, AND RELATIVELY INERT, HIGH BOILING ORGANIC LIQUIDS, SELECTED FROM THE GROUP CONSISTING OF HEPTADECANOL, DI-TERTIARY AMYL PHENOXY ETHANOL, AMYL NAPHTHALENE, DODECYL TOLUENE, FLUID SILICONES AND POLYBUTENE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |