Patent US3255351A successfully refreshed from Google Patents.
US3255351A
Expired / Lapsed
US
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Particle detector of the semiconductor type
Assignee: Nuclear Diodes Inc
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Filing: 1963-04-19
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Granted: 1966-06-07
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Expires: 1983-04-19
Abstract
No abstract record available.
Inventors
- 👤 Charles J Walsh
- 👤 Alan O Sandborg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:04
CPC Classifications
H; H10; H10F; H10F30/00; H10F30/20; H10F30/29; H10F30/292; H10F99/00
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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |