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Patent US3305406A successfully refreshed from Google Patents.
US3305406A
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Method of fluxing an article to be soldered with noncorrosive fluxing compositions
Assignee: AT&T Inc
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Filing: 1964-04-06
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Granted: 1967-02-21
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Expires: 1984-04-06
Abstract
No abstract record available.
Inventors
- 👤 George F Chmelik
- 👤 Jr John Danaczko
- 👤 Johnsen Jarliv
- 👤 John E Kinsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:32
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3612
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A METHOD OF FLUXING AN ARTICLE TO BE SOLDERED WHICH COMPRISES THE STEP OF: APPLYING TO THE SURFACE AREA OF THE ARTICLE TO BE SOLDERED A NONCORROSIVE FLUXING COMPOSITION CONSISTING OF A MINOR PROPORTION BY VOLUME OF A HIGH MOLECULAR WEIGHT, CARBOXYLIC ACID WHOSE HYDROCARBON CHAIN IS INTERRUPTED BY AN AMIDOMETHYL GROUP, SLELECTED FROM THE GROUP CONSISTING OF MONO-BASIC AND DI-BASIC ACIDS REPRESENTED RESPECTIVELY BY THE FORMULAS
Claim 2
Independent Claim
67 words
A METHOD OF FLUXING AN ARTICLE TO BE SOLDERED WHICH COMPRISES THE STEP OF: APPLYING TO THE SURFACE AREA OF THE ARTICLE TO BE SOLDERED A NONCORROSIVE FLUXING COMPOSITION CONSISTING OF A MINOR PROPORTION BY VOLUME OF A HIGH MOLECULAR WEIGHT, CARBOXYLIC ACID WHOSE HYDROCARBON CHAIN IS INTERRUPTED BY AN AMIDOMETHYL GROUP, SLELECTED FROM THE GROUP CONSISTING OF MONO-BASIC AND DI-BASIC ACIDS REPRESENTED RESPECTIVELY BY THE FORMULAS
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |