US2330824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making magnetic cores
Assignee: General Electric Co
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Filing: 1941-11-25
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Granted: 1943-10-05
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Expires: 1961-11-25
Abstract
No abstract record available.
Inventors
- 👤 John C Granfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:09
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/0206; H01F41/0233; H01F27/00; H01F27/24; H01F27/245; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T29/49078
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-10-04 | 1947-04-05 | 1947-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-10-04 | 1951-04-05 | 1951-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-10-04 | 1955-04-05 | 1955-10-05 | $7700.00 | Window Closed / Lapsed |