US3404396A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airborne clear air turbulence radar
Assignee: Boeing Co
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Filing: 1967-01-24
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Granted: 1968-10-01
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Expires: 1987-01-24
Abstract
No abstract record available.
Inventors
- 👤 Walter E Buchler
- 👤 Charles H King
- 👤 Clarence D Lunden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:42
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/88; G01S13/95; G01S13/953; H; H01; H01Q; H01Q1/00; H01Q1/27; H01Q1/28; H01Q1/282; H01Q1/283; H01Q19/00; H01Q19/28; H01Q19/32; H01Q9/00; H01Q9/04; H01Q9/30; H01Q9/42; H03; H03H; H03H7/00; H03H7/48; Y; Y02; Y02A; Y02A90/00; Y02A90/10
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) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |