US2599751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding process for joining a metal body and a semiconducting body composed of metallic and ceramic material
Assignee: Individual
•
Filing: 1949-05-19
•
Granted: 1952-06-10
•
Expires: 1969-05-19
Abstract
No abstract record available.
Inventors
- 👤 Federspiel Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:17
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A WELDING PROCESS FOR JOINING A METAL BODY AND A SEMI-CONDUCTIVE BODY, THE LATTER COMPRISING IN AN INTIMATER MIXTURE A MINOR COMPONENT OF A METAL AND A MAJOR COMPONENT COMPOSED OF METAL OXIDE AND CERAMIC MATERIAL, THE SAID PROCESS COMPRISING THE STEPS OF PLACING THE PORTIONS OF THE TWO BODIES AT WHICH THE SAME ARE TO BE WELDED TOGETHER IN A CLOSE SPECIAL RELATIONSHIP, AND SUBJECTING THE SAID TWO PORTIONS TO A WELDING TEMPERATURE IN THE PRESENCE OF A REDUCING ATMOSPHERE UNTIL METAL OXIDE CONTAINED IN THE RESPECTIVE PORTION OF THE SEMI-CONDUCTIVE BODY IS TRANSFORMED INTO META IN ITS ELEMENTAL FORM AND UNTIL MOLTEN METAL OF THE SAID PORTIONS FORM A JOINT BETWEEN THE SAME.
Claim 2
Dependent Claim
115 words
A WELDING PROCESS FOR JOINING A METAL BODY AND A SEMI-CONDUCTIVE BODY, THE LATTER COMPRISING IN AN INTIMATER MIXTURE A MINOR COMPONENT OF A METAL AND A MAJOR COMPONENT COMPOSED OF METAL OXIDE AND CERAMIC MATERIAL, THE SAID PROCESS COMPRISING THE STEPS OF PLACING THE PORTIONS OF THE TWO BODIES AT WHICH THE SAME ARE TO BE WELDED TOGETHER IN A CLOSE SPECIAL RELATIONSHIP, AND SUBJECTING THE SAID TWO PORTIONS TO A WELDING TEMPERATURE IN THE PRESENCE OF A REDUCING ATMOSPHERE UNTIL METAL OXIDE CONTAINED IN THE RESPECTIVE PORTION OF THE SEMI-CONDUCTIVE BODY IS TRANSFORMED INTO META IN ITS ELEMENTAL FORM AND UNTIL MOLTEN METAL OF THE SAID PORTIONS FORM A JOINT BETWEEN THE SAME.
References Cited (Backward Citations)
US873328A
Cited
US1884665A
Cited
US2167431A
Cited
US2184847A
Cited
US2271995A
Cited
GB595007A
Cited
US2431474A
Cited
US2496346A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |