US3274416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image intensifier type camera tube with potential field correcting means
Assignee: Individual
•
Filing: 1961-09-27
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Granted: 1966-09-20
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Expires: 1981-09-27
Abstract
No abstract record available.
Inventors
- 👤 Alexander A Rotow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:37
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/26; H01J31/28; H01J31/34; H01J31/36
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
65 words
AN IMAGE INTENSIFYING SECTION OF AN IMAGE SENSITIVE DEVICE COMPRISING A PLANAR SHAPED PHOTOCATHODE, A FOCAL PLANE FOR PHOTOELECTRONS FROM SAID PHOTOCATHODE, A TUBULAR ELECTRODE HAVING ONE END ADJACENT TO SAID PHOTOCATHODE AND THE OTHER END ADJACENT TO SAID FOCAL PLANE, SAID FOCAL PLANE BEING SUBSTANTIALLY PARALLEL TO AND SPACED FROM SAID PHOTOCATHODE, AT LEAST TWO POTENTIAL FIELD-CORRECTING ELECTRODES SPACED INWARDLY FROM SAID TUBULAR ELEC-
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |