US3584397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ship piloting trainer
Assignee: United States Department of the Navy
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Filing: 1968-09-27
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Granted: 1971-06-15
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Expires: 1988-09-27
Abstract
Abstract A SHIP PILOTING TRAINER IS DISCLOSED WHEREIN A FILM DEPICTING LANDMARKS WHICH WOULD BE SEEN UPON ENTERING A HARBOR IS PROJECTED ON A CURVED SCREEN, A GYRO REPEATER AND ALIDADE ARE DISPOSED AT THE CENTER OF CURVATURE OF THE SCREEN, AND COMPUTER MEANS ARE PROVIDED FOR PROVIDING APPROPRIATE OFFSETS TO THE GYRO CARD WHEREBY BEARINGS AND FIXES WILL CORRESPOND TO POSITIONS OF A MATH MODE SHIP.
Inventors
- 👤 Albert E Woodcock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:25
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/06; G09B9/063; Y; Y10; Y10S; Y10S715/00; Y10S715/961
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |