US2898255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soldering flux composition
Assignee: International Business Machines Corp
•
Filing: 1958-06-30
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Granted: 1959-08-04
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Expires: 1978-06-30
Abstract
No abstract record available.
Inventors
- 👤 John J Thompson
- 👤 Arthur P Knight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:54
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3612; B23K35/3613
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A SOLDERING FLUX CONSISTING ESSENTIALLY OF A MIXTURE OF ROSIN, 3-5% BY WEIGHT OF A LOW MOLECULAR WEIGHT SATRUARTED MONOCARBOXYLIC ALIPHATIC ACID, AND 1-13.5% BY WEIGHT OF A SATURATED ALIPHATIC DICARBOXYLIC ACID.
Claim 2
Dependent Claim
32 words
A SOLDERING FLUX CONSISTING ESSENTIALLY OF A MIXTURE OF ROSIN, 3-5% BY WEIGHT OF A LOW MOLECULAR WEIGHT SATRUARTED MONOCARBOXYLIC ALIPHATIC ACID, AND 1-13.5% BY WEIGHT OF A SATURATED ALIPHATIC DICARBOXYLIC ACID.
References Cited (Backward Citations)
US1208799A
Cited
US2474863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |