US2712175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of brazing with copper-base alloy
Assignee: Union Carbide Corp
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Filing: 1952-04-21
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Granted: 1955-07-05
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Expires: 1972-04-21
Abstract
No abstract record available.
Inventors
- 👤 Louis E Stark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:31
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/302
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
IN THE PROCESS OF BRAZING BY DEPOSITING A COPPER BASE ALLOY ON A METALLIC ARTICLE, THE STEP WHICH CONSISTS IN MELTING IN AN INERT SHIELDING ATMOSPHERE AN ALLOY CONTAINING 25% TO 35% MANGANESE; 1.0% TO 10% ALUMINUM; 0.1% TO 2% SILICON; THE REMAINDER COPPER AND INCIDENTAL IMPURITIES.
Claim 2
Dependent Claim
47 words
IN THE PROCESS OF BRAZING BY DEPOSITING A COPPER BASE ALLOY ON A METALLIC ARTICLE, THE STEP WHICH CONSISTS IN MELTING IN AN INERT SHIELDING ATMOSPHERE AN ALLOY CONTAINING 25% TO 35% MANGANESE; 1.0% TO 10% ALUMINUM; 0.1% TO 2% SILICON; THE REMAINDER COPPER AND INCIDENTAL IMPURITIES.
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) | 1958-07-04 | 1959-01-03 | 1959-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-04 | 1963-01-03 | 1963-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-04 | 1967-01-03 | 1967-07-05 | $7700.00 | Window Closed / Lapsed |