US3038860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lithium nickel ferrites
Assignee: Individual
•
Filing: 1956-12-20
•
Granted: 1962-06-12
•
Expires: 1976-12-20
Abstract
No abstract record available.
Inventors
- 👤 Francis E Vinal
- 👤 Daniel L Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:44
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/26; C04B35/2608; C04B35/2616
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A PROCESS FOR MANUFACTURING SHAPED LITHIUM NICKEL FERRITES HAVING HYSTERESIS LOOPS OF SUBSTANTIALLY RECTANGULAR SHAPE COMPRISING MAINTAINING SAID SHAPED FERRITES IN DIRECT CONTACT WITH A SLAB CONTAINING LITHIUM DURING THE FIRING THEREOF, WHEREIN THE PERCENTAGE OF LITHIUM IN SAID SLAB IS AT LEAST EQUAL TO THE PERCENTAGE OF LITHIUM IN THE LITHIUM NICKEL FERRITE.
Claim 2
Dependent Claim
54 words
A PROCESS FOR MANUFACTURING SHAPED LITHIUM NICKEL FERRITES HAVING HYSTERESIS LOOPS OF SUBSTANTIALLY RECTANGULAR SHAPE COMPRISING MAINTAINING SAID SHAPED FERRITES IN DIRECT CONTACT WITH A SLAB CONTAINING LITHIUM DURING THE FIRING THEREOF, WHEREIN THE PERCENTAGE OF LITHIUM IN SAID SLAB IS AT LEAST EQUAL TO THE PERCENTAGE OF LITHIUM IN THE LITHIUM NICKEL FERRITE.
References Cited (Backward Citations)
US2734034A
Cited
US2565861A
Cited
US2549089A
Cited
US2751353A
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US2754172A
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US2736708A
Cited
US2785095A
Cited
FR1110819A
Cited
FR1115324A
Cited
FR1116093A
Cited
FR1116092A
Cited
GB759244A
Cited
US2882234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |