US2496950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency heating apparatus for sequentially brazing a plurality of parts in a protective atmosphere
Assignee: AT&T Inc
•
Filing: 1946-07-31
•
Granted: 1950-02-07
•
Expires: 1966-07-31
Abstract
No abstract record available.
Inventors
- 👤 Jerome R Marcus
- 👤 Orville F Warning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:49
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1190308A
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US1696684A
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US1946876A
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US1878458A
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US2009380A
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US2184282A
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US2302119A
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US2228600A
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US2321189A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |