US2947069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum clad copper wire and process for making the same
Assignee: Westinghouse Electric Corp
•
Filing: 1956-01-12
•
Granted: 1960-08-02
•
Expires: 1976-01-12
Abstract
No abstract record available.
Inventors
- 👤 Charles L Carlson
- 👤 Stanley A Rosecrans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:38
CPC Classifications
B; B21; B21C; B21C1/00; B21C1/16; B23; B23K; B23K20/00; B23K20/22; B23K20/233; B23K20/2333; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10S428/926; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/937; Y10S428/94; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12583; Y10T428/1259; Y10T428/12597; Y10T428/12604; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2942
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
AN ELONGATED HIGHLY WORKED WROUGHT WIRE MEMBER COMPRISING AN ELONGATED CORE OF COPPER, A CONTINUOUS BARRIER LAYER OF SILVER OF AN AVERAGE THICKNESS OF AT LEAST 0.0001 INCH APPLIED TO AND BONDED TO THE SURFACE OF THE COPPER CORE, AND RELATIVELY THIN SHEATH OF ALUMINUM COVERING AND BONDED TO THE LAYER OF SILVER, SAID ALUMINUM COMPRISING FROM 5% TO 20% OF THE CROSS-SECTIONAL AREA OF THE WIRE, THE COMPOSITE STRUCTURE OF COPPER CORE, LAYER OF SILVER AND THE SHEATH OF ALUMINUM HAVING BEEN SUBJECTED TO A HIGH REDUCTION IN AREA TO METHALLURGICALLY BOND THEM TOGETHER.
Claim 2
Dependent Claim
95 words
AN ELONGATED HIGHLY WORKED WROUGHT WIRE MEMBER COMPRISING AN ELONGATED CORE OF COPPER, A CONTINUOUS BARRIER LAYER OF SILVER OF AN AVERAGE THICKNESS OF AT LEAST 0.0001 INCH APPLIED TO AND BONDED TO THE SURFACE OF THE COPPER CORE, AND RELATIVELY THIN SHEATH OF ALUMINUM COVERING AND BONDED TO THE LAYER OF SILVER, SAID ALUMINUM COMPRISING FROM 5% TO 20% OF THE CROSS-SECTIONAL AREA OF THE WIRE, THE COMPOSITE STRUCTURE OF COPPER CORE, LAYER OF SILVER AND THE SHEATH OF ALUMINUM HAVING BEEN SUBJECTED TO A HIGH REDUCTION IN AREA TO METHALLURGICALLY BOND THEM TOGETHER.
References Cited (Backward Citations)
US642157A
Cited
US1332674A
Cited
US1575994A
Cited
US1637033A
Cited
US2294482A
Cited
US2473712A
Cited
US2539247A
Cited
US2473888A
Cited
US2654146A
Cited
US2646616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |