US2859286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable gain devices
Assignee: Raytheon Co
•
Filing: 1953-11-12
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Granted: 1958-11-04
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Expires: 1973-11-12
Abstract
No abstract record available.
Inventors
- 👤 David P Kennedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:01
CPC Classifications
H; H03; H03G; H03G1/00; H03G1/0005; H03G1/0017; H10; H10D; H10D88/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2185612A
Cited
US2655607A
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GB679674A
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US2734102A
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US2701281A
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US2666150A
Cited
US2709787A
Cited
US2751446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |