US2064773A
Expired / Lapsed
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Method for making magnetic cores
Assignee: FERROCART Corp OF AMERICA
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Filing: 1934-04-21
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Granted: 1936-12-15
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Expires: 1954-04-21
Abstract
No abstract record available.
Inventors
- 👤 Vogt Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:13
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/20; H01F1/22; H01F1/24; H01F1/26; H01F41/00; H01F41/02; H01F41/0206; H01F41/0246; Y; Y10; Y10S; Y10S264/00; Y10S264/58; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T29/49076
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) | 1939-12-15 | 1940-06-15 | 1940-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-12-15 | 1944-06-15 | 1944-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-12-15 | 1948-06-15 | 1948-12-15 | $7700.00 | Window Closed / Lapsed |