US3541320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drift compensation for integrating amplifiers
Assignee: General Electric Co
•
Filing: 1968-08-07
•
Granted: 1970-11-17
•
Expires: 1988-08-07
Abstract
No abstract record available.
Inventors
- 👤 William H Beall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:01
CPC Classifications
H; H03; H03M; H03M1/00; G; G06; G06G; G06G7/00; G06G7/12; G06G7/18; G06G7/184; G06G7/186; H03M1/12; H03M1/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3267458A
Cited
US3413561A
Cited
US3422424A
Cited
US3368149A
Cited
US3374362A
Cited
US3436756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |