US2690408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solder flux compositions containing an aryl biguanide hydrochloride
Assignee: RCA Corp
•
Filing: 1951-01-18
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Granted: 1954-09-28
•
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 04:27
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.
References Cited (Backward Citations)
US1744784A
Cited
US1772952A
Cited
US1748180A
Cited
US1882734A
Cited
US1949916A
Cited
US1989557A
Cited
US1811667A
Cited
US2429033A
Cited
US2522937A
Cited
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 |