US2668288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distance measuring device
Assignee: Office National d'Études et de Recherches Aérospatiales
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Filing: 1948-09-22
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Granted: 1954-02-02
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Expires: 1968-09-22
Abstract
No abstract record available.
Inventors
- 👤 Perilhou Pierre Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:53
CPC Classifications
G; G01; G01S; G01S11/00; G01S11/02; G01S11/04; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1437400A
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US1872975A
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US1890786A
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US2010968A
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US2234654A
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US2070178A
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US2423437A
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US2056216A
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US2413694A
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US2451823A
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US2479567A
Cited
US2431625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |