US2676233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single turn induction coil
Assignee: Republic Steel Corp
•
Filing: 1950-11-29
•
Granted: 1954-04-20
•
Expires: 1970-11-29
Abstract
No abstract record available.
Inventors
- 👤 Norbert E Foxx
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:36
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/36; H05B6/40; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE767227C
Cited
US2509713A
Cited
US2383992A
Cited
US2459971A
Cited
GB613323A
Cited
US2480315A
Cited
GB616117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |