US3451130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a magnetic core structure for inductive apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1966-03-18
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Granted: 1969-06-24
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Expires: 1986-03-18
Abstract
No abstract record available.
Inventors
- 👤 Belvin B Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:24
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/0206; H01F41/0233; H01F41/024; H01F27/00; H01F27/24; H01F27/245; H01F27/2455; H01F27/25; H01F41/0213; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071; Y10T29/49075; Y10T29/49078
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA451070A
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US2840889A
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US3008222A
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US2972804A
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US3107415A
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US3307132A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |