US2702355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable voltage glow discharge device
Assignee: Centre National de la Recherche Scientifique
•
Filing: 1949-02-19
•
Granted: 1955-02-15
•
Expires: 1969-02-19
Abstract
No abstract record available.
Inventors
- 👤 Felici Noel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:02
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/38; H01J17/40; H01J17/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1973082A
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US2046233A
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US2276861A
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US2279313A
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US2300882A
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US2545884A
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US2523287A
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US2540399A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-14 | 1958-08-16 | 1959-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-14 | 1962-08-16 | 1963-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-14 | 1966-08-16 | 1967-02-15 | $7700.00 | Window Closed / Lapsed |