US2789162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wave amplifying circuits
Assignee: General Electric Co
•
Filing: 1952-03-01
•
Granted: 1957-04-16
•
Expires: 1972-03-01
Abstract
No abstract record available.
Inventors
- 👤 Garret F Ziffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:54
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/38; H03F1/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2303485A
Cited
US2623954A
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US2562894A
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US2591249A
Cited
US2507695A
Cited
GB644083A
Cited
US2525103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-15 | 1960-10-15 | 1961-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-15 | 1964-10-15 | 1965-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-15 | 1968-10-15 | 1969-04-16 | $7700.00 | Window Closed / Lapsed |