US3416980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sealing frusto-conical lead-through elements
Assignee: Compagnie Francaise de Television SA
•
Filing: 1963-12-23
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Granted: 1968-12-17
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Expires: 1983-12-23
Abstract
No abstract record available.
Inventors
- 👤 Cahen Roger
- 👤 Driffort Jean-Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:15
CPC Classifications
C; C03; C03C; C03C27/00; C03C27/04; C03C27/042; C03C27/044; H; H01; H01J; H01J5/00; H01J5/32; H01J9/00; H01J9/24; H01J9/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2377317A
Cited
US1355781A
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US2106578A
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US2749579A
Cited
US2931142A
Cited
US3183361A
Cited
US3208892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |