Patent US2699902A successfully refreshed from Google Patents.
US2699902A
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Coil winding machine
Assignee: Micafil AG
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Filing: 1950-06-21
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Granted: 1955-01-18
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Expires: 1970-06-21
Abstract
No abstract record available.
Inventors
- 👤 Wirth Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:36
CPC Classifications
B; B21; B21F; B21F3/00; 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)
US674078A
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US1879882A
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US1940175A
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US2192694A
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US2185883A
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US2263972A
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US2327211A
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US2472089A
Cited
US2425511A
Cited
US2467286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-17 | 1958-07-19 | 1959-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-17 | 1962-07-19 | 1963-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-17 | 1966-07-19 | 1967-01-18 | $7700.00 | Window Closed / Lapsed |