Patent US3061815A successfully refreshed from Google Patents.
US3061815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal translating system
Assignee: FKI Industries Inc
•
Filing: 1957-06-19
•
Granted: 1962-10-30
•
Expires: 1977-06-19
Abstract
No abstract record available.
Inventors
- 👤 Sidney R Tomes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:12
CPC Classifications
H; H03; H03K; H03K21/00; H03K21/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1918252A
Cited
US2146862A
Cited
US2454792A
Cited
US2534544A
Cited
US2570716A
Cited
US2641641A
Cited
US2634052A
Cited
US2533001A
Cited
US2605306A
Cited
US2755338A
Cited
US2719959A
Cited
US2848647A
Cited
US2937369A
Cited
US2978174A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |