US3448450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse radar for determining angles of elevation
Assignee: Compagnie Francaise Thomson Houston SA
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Filing: 1967-08-29
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Granted: 1969-06-03
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Expires: 1987-08-29
Abstract
No abstract record available.
Inventors
- 👤 Roger Alfandari
- 👤 Bernard Daveau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:58
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/42; G01S13/424; H; H01; H01Q; H01Q25/00; H01Q3/00; H01Q3/26; H01Q3/30; H01Q3/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |