Patent US3378738A successfully refreshed from Google Patents.
US3378738A
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Traveling wave transistor
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1965-08-25
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Granted: 1968-04-16
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Expires: 1985-08-25
Abstract
No abstract record available.
Inventors
- 👤 George W Mciver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:57
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/04; H03F3/16; H10; H10D; H10D99/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3233122A
Cited
US3328601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |