US3417340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable gain circuit
Assignee: Nortel Networks Ltd
•
Filing: 1965-03-04
•
Granted: 1968-12-17
•
Expires: 1985-03-04
Abstract
No abstract record available.
Inventors
- 👤 Overtveld Gilles Jozias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:10
CPC Classifications
H; H03; H03G; H03G1/00; H03G1/0005; H03G1/0035; H03G1/0052; H03H; H03H7/00; H03H7/24; H03H7/25; H03H7/253
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3015781A
Cited
US3127577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |