US2744873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed nickel, zinc, vanadium ferrite
Assignee: General Electric Co
•
Filing: 1952-11-08
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Granted: 1956-05-08
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Expires: 1972-11-08
Abstract
No abstract record available.
Inventors
- 👤 Leon T Piekarski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:16
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/26; C04B35/265
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A SOFT FERROMAGNETIC MIXED CRYSTALL FERRITE CONSISTING ESSENTIALLY OF 40 TO 60 MOL PER CENT IRON OXIDE, 0.1 TO 1.0 MOL PER CENT VANADIUM OXIDE, 18 TO 32 MOL PER CENT ZINC OXIDE, BALANCE NICKEL OXIDE.
Claim 2
Dependent Claim
36 words
A SOFT FERROMAGNETIC MIXED CRYSTALL FERRITE CONSISTING ESSENTIALLY OF 40 TO 60 MOL PER CENT IRON OXIDE, 0.1 TO 1.0 MOL PER CENT VANADIUM OXIDE, 18 TO 32 MOL PER CENT ZINC OXIDE, BALANCE NICKEL OXIDE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |