US3609992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed box for maintaining a semiconductor radiation detector at a very low temperature
Assignee: US Philips Corp
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Filing: 1969-08-12
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Granted: 1971-10-05
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Expires: 1989-08-12
Abstract
Abstract HERMETICALLY CLOSED BOX FOR ACCOMMODATING A SEMICONDUCTOR DEVICE, SUCH AS A RADIATION DETECTOR WHICH IS MAINTAINED IN A VACUUM AND AT LOW TEMPERATURE BY CONNECTION TO A CRYOSTAT VY A FLEXIBLE COLD CONDUCTOR, WITH ADDITIONAL MEANS IN THE BOX FOR IMPROVING THE VACUUM.
Inventors
- 👤 Jean Antoine Cacheux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:45
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/02; F17C3/08; F17C3/085; G; G01; G01T; G01T1/00; G01T1/16; G01T1/24; G01T1/244; H; H10; H10F; H10F99/00; F17C2270/00; F17C2270/05; F17C2270/0518; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/888; Y10S505/898
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |