US2854610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor transistor device
Assignee: Raytheon Co
•
Filing: 1955-03-24
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Granted: 1958-09-30
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Expires: 1975-03-24
Abstract
No abstract record available.
Inventors
- 👤 Warren P Waters
- 👤 Richard A Gudmundsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:02
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/10; H10W76/12; H10W76/161; H10W72/00; H10W72/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2672528A
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US2644914A
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US2644852A
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US2765516A
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US2762956A
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US2754455A
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US2744218A
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US2777974A
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US2794942A
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US2808543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |