Patent US3424910A successfully refreshed from Google Patents.
US3424910A
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US
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Switching circuit using a two-carrier negative resistance device
Assignee: Raytheon Co
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Filing: 1965-04-19
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Granted: 1969-01-28
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Expires: 1985-04-19
Abstract
No abstract record available.
Inventors
- 👤 James W Mayer
- 👤 Ogden J Marsh
- 👤 Robert E Baron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:20
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/78; H10; H10D; H10D99/00; H10F; H10F99/00; H10P; H10P95/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2863056A
Cited
US2986591A
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US3081404A
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US3158754A
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US3324297A
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US3158760A
Cited
US3249764A
Cited
US3304430A
Cited
US3358146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |