US3886077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Garnet structure ferrimagnetic material having a saturation magnetisation less than 1000 gauss for microwave applications
Assignee: Thales SA
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Filing: 1973-03-30
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Granted: 1975-05-27
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Expires: 1993-03-30
Abstract
Abstract A garnet structure ferrimagnetic material designed to operate at frequencies of around 2000 Mc/s and below, with very high stability and reduced losses, at high peak power, is provided. The material satisfies the basic molecular formula:
Inventors
- 👤 Jean Nicolas
- 👤 Alain Lagrange
- 👤 Roland Sroussi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:31
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/26; C04B35/2641; C04B35/2675
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
9 words
FERRIMAGNETIC POLYCRYSTALINE GARNET STRUCTURE MATERIAL HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
9 words
FERRIMAGNETIC POLYCRYSTALINE GARNET STRUCTURE MATERIAL HAVING THE GENERAL FORMULA:
Claim 3
Dependent Claim
21 words
The material as claimed in claim 1 wherein: x 0.6 z 0.2 0.02 < or = y < or = 0.10
Claim 4
Dependent Claim
21 words
The material as claimed in claim 1 wherein: x 0.6 z 0.3 0.04 < or = y < or = 0.12
Claim 5
Dependent Claim
21 words
The material as claimed in claim 1 wherein: x 0.7 z 0.3 0.02 < or = y < or = 0.10
Claim 6
Dependent Claim
21 words
The material as claimed in claim 1 wherein: x 0.8 z 0.3 0.02 < or = Y < or = 0.06
Claim 7
Dependent Claim
21 words
The material as claimed in claim 1 wherein: x 0.8 z 0.4 0.02 < or = Y < or = 0.10
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) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |