US3018476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for displaying to a gunner or pilot in an aircraft an artificial image at infinity of a graticule
Assignee: Ferranti International PLC
•
Filing: 1956-09-21
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Granted: 1962-01-23
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Expires: 1976-09-21
Abstract
No abstract record available.
Inventors
- 👤 Powley Mallinson
- 👤 Sykes Ben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:29
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/01; G02B27/0149; G02B27/0101; B; B60; B60K; B60K2360/00; B60K2360/20; B60K2360/33; B60K2360/334; G02B2027/0154; G02B2027/0169; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1218
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2715776A
Cited
US2527245A
Cited
US2419239A
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US2703039A
Cited
US2543002A
Cited
US2467972A
Cited
US2887927A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |