US3093453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ferrite material containing fluorine
Assignee: Weizmann Institute of Science
•
Filing: 1959-04-15
•
Granted: 1963-06-11
•
Expires: 1979-04-15
Abstract
No abstract record available.
Inventors
- 👤 Frei Ephraim Heinrich
- 👤 Schieber Michael
- 👤 Shtrikman Shmuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:36
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/26; C04B35/2608; C04B35/2633; C04B35/2683
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A BARIUM FERRITE, HAVING THE FORMULA BAO.6FE2O3, AND HAVING A HEXAGONAL MAGNETO PLUMBITE CRYSTAL STRUCTURE IN WHICH TWO OUT OF NINETEEN OXYGEN ATOMS ARE REPLACED BY FLUORINE.
Claim 2
Dependent Claim
27 words
A BARIUM FERRITE, HAVING THE FORMULA BAO.6FE2O3, AND HAVING A HEXAGONAL MAGNETO PLUMBITE CRYSTAL STRUCTURE IN WHICH TWO OUT OF NINETEEN OXYGEN ATOMS ARE REPLACED BY FLUORINE.
References Cited (Backward Citations)
US2736708A
Cited
GB697219A
Cited
US2762778A
Cited
US2946753A
Cited
US2893830A
Cited
US2962345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |