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US3208948A
Expired / Lapsed
US
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Vanadium-containing ferrimagnetic material
Assignee: US Philips Corp
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Filing: 1962-08-31
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Granted: 1965-09-28
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Expires: 1982-08-31
Abstract
No abstract record available.
Inventors
- 👤 Blasse George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:26
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/26; C04B35/2666
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A FERRIMAGNETIC MATERIAL CONSISTING ESSENTIALLY OF A COMPOSITION CORRESPONDING OT THE FORMULA:
Claim 2
Dependent Claim
12 words
A FERRIMAGNETIC MATERIAL CONSISTING ESSENTIALLY OF A COMPOSITION CORRESPONDING OT THE FORMULA:
References Cited (Backward Citations)
US2744873A
Cited
GB830208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |