Patent US3416088A successfully refreshed from Google Patents.
US3416088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical signal amplifier
Assignee: Rank Bush Murphy Ltd
•
Filing: 1964-10-27
•
Granted: 1968-12-10
•
Expires: 1984-10-27
Abstract
No abstract record available.
Inventors
- 👤 Baldwin John Lewis Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:23
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H03; H03F; H03F1/00; H03F1/34; H03F1/36; H03F3/00; H03F3/26; H03F3/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |