US2631952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soldering flux and process of manufacture
Assignee: Thermoflux Products Inc
•
Filing: 1949-12-29
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Granted: 1953-03-17
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Expires: 1969-12-29
Abstract
No abstract record available.
Inventors
- 👤 Harrison L Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:25
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
SOLDERING FLUX IN LIQUID TO SEMI-SOLID PASTE FORM COMPRISING ESSENTIALLY A WATER SOLUTION OF ZINC CHLORIDE AND A LIQUID POLYGLYCOL PRODUCT HAVING A MOLECULAR WEIGHT IN THE RANGE OF 300 TO 15,000 AND WATER-SOLUBLE AT NORMAL ROOM TEMPERATURE, SAID PRODUCT CONSTITUTING FROM ONE TO TWENTY-FIVE PERCENT OF THE SOLUTION, AND SAID SOLUTION BEING CHARACTERIZED BY ABSENCE OF CRYSTAL SEPARATION ON STANDING AND BY NON-DRYING.
Claim 2
Dependent Claim
64 words
SOLDERING FLUX IN LIQUID TO SEMI-SOLID PASTE FORM COMPRISING ESSENTIALLY A WATER SOLUTION OF ZINC CHLORIDE AND A LIQUID POLYGLYCOL PRODUCT HAVING A MOLECULAR WEIGHT IN THE RANGE OF 300 TO 15,000 AND WATER-SOLUBLE AT NORMAL ROOM TEMPERATURE, SAID PRODUCT CONSTITUTING FROM ONE TO TWENTY-FIVE PERCENT OF THE SOLUTION, AND SAID SOLUTION BEING CHARACTERIZED BY ABSENCE OF CRYSTAL SEPARATION ON STANDING AND BY NON-DRYING.
References Cited (Backward Citations)
US804664A
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US1783925A
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US2228352A
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US2260986A
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US2481457A
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US2548690A
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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) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |