US2931937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage tubes
Assignee: Thales SA
•
Filing: 1956-06-05
•
Granted: 1960-04-05
•
Expires: 1976-06-05
Abstract
No abstract record available.
Inventors
- 👤 Dufour Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:03
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/58; H01J29/62; H01J29/622; H01J29/624; H01J31/00; H01J31/08; H01J31/58; H01J31/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2276359A
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US2535817A
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US2532339A
Cited
US2777971A
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US2817042A
Cited
US2863088A
Cited
US2728872A
Cited
US2884557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |