US3426291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement utilizing phase conditioned harmonically related signals to improve traveling-wave amplifier efficiency
Assignee: Raytheon Co
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Filing: 1965-03-31
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Granted: 1969-02-04
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Expires: 1985-03-31
Abstract
No abstract record available.
Inventors
- 👤 Rolf D Weglein
- 👤 Delos T Kittoe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:42
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/34; H03; H03B; H03B19/00; H03F; H03F3/00; H03F3/54; H03F3/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |