US3156651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light transparent ferrimagnetic garnets
Assignee: AT&T Inc
•
Filing: 1962-03-28
•
Granted: 1964-11-10
•
Expires: 1982-03-28
Abstract
No abstract record available.
Inventors
- 👤 Geller Seymour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:39
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/26; C04B35/2641
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
3 words
THE FERRIMAGNETIC GARNET
Claim 2
Dependent Claim
3 words
THE FERRIMAGNETIC GARNET
Claim 3
Dependent Claim
3 words
THE FERRIMAGNETIC GARNET
Claim 4
Dependent Claim
3 words
THE FERRIMAGNETIC GARNET
References Cited (Backward Citations)
US2974568A
Cited
US3085980A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |