US3046227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ferromagnetic material
Assignee: US Philips Corp
•
Filing: 1958-10-20
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Granted: 1962-07-24
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Expires: 1978-10-20
Abstract
No abstract record available.
Inventors
- 👤 Gorter Evert Willem
- 👤 Lotgering Frederik Karel
- 👤 Blejers Hugo Gerrit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:00
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/26; C04B35/2608; C04B35/2633; C04B35/2616; C04B35/2625; C04B35/2683
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A FERROMAGNETIC BODY PARTICULARLY ADAPTED FOR USE IN MICROWAVE APPARTUS CONSISTING ESSENTIALLY OF A COHERENT MASS OF MIXED CRYSTALS OF COMPOUNDS HAVING A HEXAGONAL CRYSTAL STRUCTURE SIMILAR TO THAT OF THE COMPOUND BAFE12O19, THE COMPOSITION OF SAID MIXED CRYSTALS CORRESPONDING TO THE FORMULA
Claim 2
Dependent Claim
43 words
A FERROMAGNETIC BODY PARTICULARLY ADAPTED FOR USE IN MICROWAVE APPARTUS CONSISTING ESSENTIALLY OF A COHERENT MASS OF MIXED CRYSTALS OF COMPOUNDS HAVING A HEXAGONAL CRYSTAL STRUCTURE SIMILAR TO THAT OF THE COMPOUND BAFE12O19, THE COMPOSITION OF SAID MIXED CRYSTALS CORRESPONDING TO THE FORMULA
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |