US2944235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature coil structure
Assignee: Individual
•
Filing: 1957-03-21
•
Granted: 1960-07-05
•
Expires: 1977-03-21
Abstract
No abstract record available.
Inventors
- 👤 Melville F Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:50
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/12; H01F41/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US495026A
Cited
FR427599A
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US1777571A
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US2169570A
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US2241505A
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US2179257A
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US2318435A
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US2421652A
Cited
US2453725A
Cited
US2478633A
Cited
US2608610A
Cited
US2771386A
Cited
US2751318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |