Patent US3365269A successfully refreshed from Google Patents.
US3365269A
Expired / Lapsed
US
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Ferromagnetic metal oxyfluorides
Assignee: EIDP Inc
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Filing: 1964-09-14
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Granted: 1968-01-23
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Expires: 1984-09-14
Abstract
No abstract record available.
Inventors
- 👤 Bertrand L Chamberland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:28
CPC Classifications
C; C01; C01G; C01G1/00; C04; C04B; C04B35/00; C04B35/01; C04B35/26; C04B35/2658; C04B35/2666; H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/0302; H01F1/0311; H01F1/0313
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |