US3053770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Motors Liquidation Co
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Filing: 1958-04-17
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Granted: 1962-09-11
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Expires: 1978-04-17
Abstract
No abstract record available.
Inventors
- 👤 William E Counts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:26
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/26; C04B35/2683
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A CERAMIC COMPOSITION FOR USE IN MAKING MAGNETS WHICH, AFTER FIRING TO SINTERING TEMPERATURE, CONSISTS ESSENTIALLY OF A FERRITE SHOWING ON CHEMICAL ANALYSIS FE2O3 AND BAO IN A MOLAR RATIO OF ABOUT 6 TO 1, AND FROM 4% TO 20% BY WEIGHT BI2O3.
Claim 2
Dependent Claim
43 words
A CERAMIC COMPOSITION FOR USE IN MAKING MAGNETS WHICH, AFTER FIRING TO SINTERING TEMPERATURE, CONSISTS ESSENTIALLY OF A FERRITE SHOWING ON CHEMICAL ANALYSIS FE2O3 AND BAO IN A MOLAR RATIO OF ABOUT 6 TO 1, AND FROM 4% TO 20% BY WEIGHT BI2O3.
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) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |