US2889486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interdigital delay line
Assignee: Thales SA
•
Filing: 1953-03-19
•
Granted: 1959-06-02
•
Expires: 1973-03-19
Abstract
No abstract record available.
Inventors
- 👤 Pierre R Guenard
- 👤 Pierre C Palluel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:21
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/24; H01J23/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2653270A
Cited
US2532545A
Cited
US2636948A
Cited
US2602148A
Cited
US2622158A
Cited
US2768322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |