US2465587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fog freeable runway for aircraft and plant associated therewith
Assignee: Minister of Supply In Her Majesty S Government
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Filing: 1946-02-08
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Granted: 1949-03-29
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Expires: 1966-02-08
Abstract
No abstract record available.
Inventors
- 👤 Hartley Arthur Clifford
- 👤 Brown John Cecil
- 👤 Callendar Guy Stewart
- 👤 Fehling Hans Reinhard
- 👤 Fox Denys Anthony
- 👤 Gill Frank
- 👤 Moore William Thomas
- 👤 Rosin Paul Otto
- 👤 Williamson Gerald Johnstone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:32
CPC Classifications
E; E01; E01H; E01H13/00; Y; Y10; Y10S; Y10S454/00; Y10S454/901
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) | 1952-03-28 | 1952-09-27 | 1953-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-28 | 1956-09-27 | 1957-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-28 | 1960-09-27 | 1961-03-29 | $7700.00 | Window Closed / Lapsed |