US2956222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor amplifier circuit
Assignee: General Precision Inc
•
Filing: 1955-08-05
•
Granted: 1960-10-11
•
Expires: 1975-08-05
Abstract
No abstract record available.
Inventors
- 👤 Frank A Hill
- 👤 Duane A Ladine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:33
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/016
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2730574A
Cited
US2653282A
Cited
US2798904A
Cited
US2827603A
Cited
US2773132A
Cited
US2760088A
Cited
US2740086A
Cited
US2767364A
Cited
US2767365A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |