Patent US2816357A successfully refreshed from Google Patents.
US2816357A
Expired / Lapsed
US
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Method of soldering with a polyester flux
Assignee: Bjorksten Research Laboratories Inc
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Filing: 1953-08-27
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Granted: 1957-12-17
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Expires: 1973-08-27
Abstract
No abstract record available.
Inventors
- 👤 James E Henning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:20
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3612; B23K35/3616
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
THE PROCESS OF SOLDERING, WHICH COMPRISES THE STEPS OF APPLYING TO TWO METAL SURFACES A LINEAR SOLID HIGHLY CHLORINATED POLYESTER PRODUCT HAVING AN ACID NUMBER OF BETWEEN 35 AND 100, WHICH IS THE REACTION PRODUCT OF A CHLORINATED POLYBASIC ACID AND POLYHYDRIC ALCOHOL, AND THEN APPLYING MOLTEN SOLDERING METAL TO A JUCTION OF SAID SURFACE SO AS TO SOLDER THEM TOGETHER.
Claim 2
Dependent Claim
61 words
THE PROCESS OF SOLDERING, WHICH COMPRISES THE STEPS OF APPLYING TO TWO METAL SURFACES A LINEAR SOLID HIGHLY CHLORINATED POLYESTER PRODUCT HAVING AN ACID NUMBER OF BETWEEN 35 AND 100, WHICH IS THE REACTION PRODUCT OF A CHLORINATED POLYBASIC ACID AND POLYHYDRIC ALCOHOL, AND THEN APPLYING MOLTEN SOLDERING METAL TO A JUCTION OF SAID SURFACE SO AS TO SOLDER THEM TOGETHER.
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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) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |