Patent US4544301A successfully refreshed from Google Patents.
Patent US2712992A successfully refreshed from Google Patents.
US2712992A
Expired / Lapsed
US
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Copper-base alloy
Assignee: Olin Corp
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Filing: 1953-11-16
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Granted: 1955-07-12
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Expires: 1973-11-16
Abstract
No abstract record available.
Inventors
- 👤 Pulsifer Verne
- 👤 Michael V Nevitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:09
CPC Classifications
C; C22; C22C; C22C9/00; C22C9/05
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
85 words
AN ELECTRICAL CONDUCTOR CHARACTERIZED BY AN ELECTICAL CONDUCTIVITY OF AT LEAST 50% I. A. C. S., A TENSILE STRENGTH OF AT LEAST 75,000 POUNDS PER SQUARE INCH, AND FORMED OF A COLD-WORKED COPPER-BASE ALLOY COMPOSED OF FROM ABOUT 0.16% TO 0.58% PHOSPHORUS FROM ABOUT O.02% TO 0.89% IRON, AND FROM ABOUT 0.27% TO 1.12% MANGANESE, WITH THE BALANCE SUBSTANTIALLY COPPER, THE PERCENTAGES OF PHOSPHORUS, IRON AND MANGANESE CORRESPONDING TO A POINT WITHIN THE VOLUME E OF THE THREE-DIMENSIONAL DIAGRAM OF FIGURE 8 OF THE DRAWINGS.
References Cited (Backward Citations)
US2123628A
Cited
US2155406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-11 | 1959-01-10 | 1959-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-11 | 1963-01-10 | 1963-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-11 | 1967-01-10 | 1967-07-12 | $7700.00 | Window Closed / Lapsed |