US3736106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for flux crystallizing ferrites spinels and garnets from 1% melt mixture
Assignee: Bpifrance Financement SA
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Filing: 1969-04-03
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Granted: 1973-05-29
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Expires: 1989-04-03
Abstract
Abstract TO AN INITIAL MATERIAL (MIXTURE OF 50% MOL. FE2O3 AND 50% MOL. MNO) A FLUS (FOR EXAMPLE BACO3) IS ADDED IN SUFFICIENTLY SMALL PROPORTION (85 P.P.,) SO THAT THE LIQUID PHASE WHICH APPEARS, WHEN THE SAMPLE THUS CONSTITUTED IS MAINTAINED AT APPROPRIATE TEMPERATURES, IS CONSTITUTED BY FINE LIQUID FILMS WHOSE PRESENCE CAUSES A DISCONTINUOUS GROWTH OF THE CRYSTALS (DIAMETER OF THE CRYSTALS EQUAL TO 10**3-10**4U) AND THE FORMATION OF MONOCRYSTALS, THE SAMPLE REMAINING IN TE SOLID STATE.
Inventors
- 👤 A Hamelin
- 👤 M Paulus
- 👤 C Guillaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:38
CPC Classifications
C; C30; C30B; C30B9/00; C30B1/00; C30B1/02; C30B1/10; C30B29/00; C30B29/10; C30B29/16; C30B29/22; C30B29/26; C30B29/28; Y; Y10; Y10S; Y10S117/00; Y10S117/906
Claims Analysis
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References Cited (Backward Citations)
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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) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |