US2679574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conduction heating of metallic strip
Assignee: Westinghouse Electric Corp
•
Filing: 1949-09-27
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Granted: 1954-05-25
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Expires: 1969-09-27
Abstract
No abstract record available.
Inventors
- 👤 Marion E Wade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:54
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/0004; H05B3/0009; C; C21; C21D; C21D9/00; C21D9/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2479346A
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US2583227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |