Patent US3061213A successfully refreshed from Google Patents.
US3061213A
Expired / Lapsed
US
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Toroidal coil winding mechanism
Assignee: Individual
•
Filing: 1958-03-04
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Granted: 1962-10-30
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Expires: 1978-03-04
Abstract
No abstract record available.
Inventors
- 👤 Kenneth P Gorman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:14
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/06; H01F41/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1792733A
Cited
US2176335A
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US2171119A
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US2554493A
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US2704637A
Cited
US2763441A
Cited
US2793818A
Cited
US2843336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |