Patent US3435137A successfully refreshed from Google Patents.
US3435137A
Expired / Lapsed
US
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Infrared camera tube utilizing a superconductor material detector
Assignee: United States Department of the Navy
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Filing: 1965-06-14
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Granted: 1969-03-25
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Expires: 1985-06-14
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Altshuler
- 👤 Thomas E Harr
- 👤 George E Ledges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:34
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/45; H01J29/458; Y; Y10; Y10S; Y10S505/00; Y10S505/825
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2967961A
Cited
US3153146A
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US3141974A
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US3096431A
Cited
US3193685A
Cited
US3138026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |