Patent US2706280A successfully refreshed from Google Patents.
US2706280A
Expired / Lapsed
US
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Coil construction and method of making the same
Assignee: Essex Wire Corp
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Filing: 1950-12-30
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Granted: 1955-04-12
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Expires: 1970-12-30
Abstract
No abstract record available.
Inventors
- 👤 Guzzo Joseph
- 👤 Helgason Arni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:58
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F27/00; H01F27/28; H01F27/2871; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-11 | 1958-10-11 | 1959-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-11 | 1962-10-11 | 1963-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-11 | 1966-10-11 | 1967-04-12 | $7700.00 | Window Closed / Lapsed |