Patent US2890141A successfully refreshed from Google Patents.
US2890141A
Expired / Lapsed
US
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Soldering flux
Assignee: International Business Machines Corp
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Filing: 1956-08-08
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Granted: 1959-06-09
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Expires: 1976-08-08
Abstract
No abstract record available.
Inventors
- 👤 Henry E Maccormack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:06
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3612; B23K35/3613
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A SOLDERING FLUX CONSISTING OF ROSIN AND GLACIAL ACETIC ACID, THE LATTER BEING IN THE PROPORTION OF FROM 0.1% TO 10% BY WEIGHT OF THE FLUX.
Claim 2
Dependent Claim
26 words
A SOLDERING FLUX CONSISTING OF ROSIN AND GLACIAL ACETIC ACID, THE LATTER BEING IN THE PROPORTION OF FROM 0.1% TO 10% BY WEIGHT OF THE FLUX.
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) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |