Patent US3065428A successfully refreshed from Google Patents.
US3065428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for reducing effects of grid current in stabilized amplifiers
Assignee: Reeves Instrument Corp
•
Filing: 1955-11-25
•
Granted: 1962-11-20
•
Expires: 1975-11-25
Abstract
No abstract record available.
Inventors
- 👤 Peter L Richman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:21
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/38; H03F3/40
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1961937A
Cited
US1975371A
Cited
AU2316235A
Cited
US2429419A
Cited
US2730573A
Cited
US2613344A
Cited
US2684999A
Cited
US2752432A
Cited
US2749441A
Cited
US2845490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |