US2992949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flux agents for soft solders
Assignee: Kuppers Metallwerk GmbH
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Filing: 1959-05-12
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Granted: 1961-07-18
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Expires: 1979-05-12
Abstract
No abstract record available.
Inventors
- 👤 Melchiors Horst
- 👤 Wesseling Chemotechniker
- 👤 Luz Wolf-Dieter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:16
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3612; B23K35/3615
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
IN A SOLDERING FLUX FOR SOFT SOLDER HAVING AN ACTIVATING AGENT AND A CARRIER SELECTED FROM THE GROUP CONSISTING OF RESINS AND WAXES, THE IMPROVEMENT WHICH COMPRISES THE ACTIVATING AGENT ESSENTIALLY CONSISTING OF A HYDROHALIDE SALT OF A LOWER ALKANOLAMINE DISUBSTITUTED AT THE NITROGEN ATOM WITH MEMBERS FROM THE GROUP CONSISTING OF PHENYL AND ALKYL RADICALS HAVING FROM 1-6 CARBON ATOMS.
Claim 2
Dependent Claim
61 words
IN A SOLDERING FLUX FOR SOFT SOLDER HAVING AN ACTIVATING AGENT AND A CARRIER SELECTED FROM THE GROUP CONSISTING OF RESINS AND WAXES, THE IMPROVEMENT WHICH COMPRISES THE ACTIVATING AGENT ESSENTIALLY CONSISTING OF A HYDROHALIDE SALT OF A LOWER ALKANOLAMINE DISUBSTITUTED AT THE NITROGEN ATOM WITH MEMBERS FROM THE GROUP CONSISTING OF PHENYL AND ALKYL RADICALS HAVING FROM 1-6 CARBON ATOMS.
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) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |