US2871338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joining of cupreous metals and alloys
Assignee: Gallay Ltd
•
Filing: 1957-03-20
•
Granted: 1959-01-27
•
Expires: 1977-03-20
Abstract
No abstract record available.
Inventors
- 👤 Broad Charles Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:21
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/001; B23K35/007; B23K11/00; B23K11/16; B23K11/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A METHOD OF RESISTANCE WELDING CUPREOUS METALS OR ALLOYS, COMPRISING DISPOSING BETWEEN THE SURFACE WHICH ARE TO BE ADHESIVELY SECURED TOGETHER A LAMINA OF METAL OR ALLOY WHICH HAS A LOWER HEAT CONDUCTIVITY THAN SAID CUPREOUS METAL OR ALLOY AND WHICH IS FURNISHED WITH A SOLDER COATING ON BOTH SURFACE, AND THEREAFTER APPLYING A WELDING CURRENT THERETO.
Claim 2
Independent Claim
57 words
A METHOD OF RESISTANCE WELDING CUPREOUS METALS OR ALLOYS, COMPRISING DISPOSING BETWEEN THE SURFACE WHICH ARE TO BE ADHESIVELY SECURED TOGETHER A LAMINA OF METAL OR ALLOY WHICH HAS A LOWER HEAT CONDUCTIVITY THAN SAID CUPREOUS METAL OR ALLOY AND WHICH IS FURNISHED WITH A SOLDER COATING ON BOTH SURFACE, AND THEREAFTER APPLYING A WELDING CURRENT THERETO.
References Cited (Backward Citations)
US625117A
Cited
US1458274A
Cited
US1636656A
Cited
US1845322A
Cited
US1892607A
Cited
US2151758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |