US3534207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Secondary emission conductivity target comprising plural laminations of different porous materials
Assignee: Compagnie Francaise Thomson Houston SA
•
Filing: 1967-06-05
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Granted: 1970-10-13
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Expires: 1987-06-05
Abstract
No abstract record available.
Inventors
- 👤 Michel Blamoutier
- 👤 Christian Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:18
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2708726A
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GB675320A
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US2677715A
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US2900555A
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US3002124A
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US2910602A
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GB879569A
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US3051860A
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US3197662A
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US3128406A
Cited
BE681355A
Cited
GB1137910A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |