US3412252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared sensing by quenching in junction semiconductor
Assignee: US Philips Corp
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Filing: 1965-02-15
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Granted: 1968-11-19
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Expires: 1985-02-15
Abstract
No abstract record available.
Inventors
- 👤 Grimmeiss Hermann Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:08
CPC Classifications
H; H10; H10F; H10F30/00; H10F30/20; H10F10/00; H10F10/10; H10F55/00; H10F99/00; Y; Y02; Y02E; Y02E10/00; Y02E10/50
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) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |