US2647200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled induction heating with scanning
Assignee: Westinghouse Electric Corp
•
Filing: 1949-05-14
•
Granted: 1953-07-28
•
Expires: 1969-05-14
Abstract
No abstract record available.
Inventors
- 👤 John A Redmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:01
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1861869A
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US2202759A
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US2368809A
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US2325279A
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US2370714A
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US2453529A
Cited
US2429819A
Cited
US2470443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |