US3056115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic core circuit
Assignee: RCA Corp
•
Filing: 1957-02-25
•
Granted: 1962-09-25
•
Expires: 1977-02-25
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Lo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:44
CPC Classifications
H; H03; H03K; H03K23/00; H03K23/76; H03K17/00; H03K17/51; H03K17/80; H03K17/81
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2695398A
Cited
US2719773A
Cited
US2719961A
Cited
US2719962A
Cited
US2710952A
Cited
US2813260A
Cited
US2866178A
Cited
US2785390A
Cited
US2825820A
Cited
US2904626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |