Patent US3223641A successfully refreshed from Google Patents.
US3223641A
Expired / Lapsed
US
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Square loop molybdenum modified ferrites
Assignee: RCA Corp
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Filing: 1963-08-28
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Granted: 1965-12-14
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Expires: 1983-08-28
Abstract
No abstract record available.
Inventors
- 👤 Lessoff Howard
- 👤 Eugene G Fortin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:40
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/26; C04B35/2608; C04B35/2616; C04B35/2625; C04B35/2691
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A MAGNETIC CORE HAVING A SQUARENESS RATIO OF RS OF AT LEAST 0.7 AND THE MOLAR COMPOSITION:
Claim 2
Dependent Claim
17 words
A MAGNETIC CORE HAVING A SQUARENESS RATIO OF RS OF AT LEAST 0.7 AND THE MOLAR COMPOSITION:
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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |