Patent US3136999A successfully refreshed from Google Patents.
US3136999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Navigational guide apparatus and method
Assignee: Individual
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Filing: 1960-06-13
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Granted: 1964-06-09
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Expires: 1980-06-13
Abstract
No abstract record available.
Inventors
- 👤 Robert Z Schreffler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:29
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/24; G09B9/30; G09B9/305
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A METHOD OF PROVIDING A VISUAL REPRODUCTION OF AN AIRCRAFT''S PATH OF TRAVEL, ATTITUDE AND ALTITUDE WHICH COMPRISES TRANSMITTING FROM THE AIRCRAFT A PLURALITY OF DIFFERENT RADIO SIGNALS IN RESPONSE TO CHANGES IN LOCATION, TO CHANGES IN BANK, TURN AND CLIMB ATTITUDES AND TO CHANGES IN THE ALTITUDE OF THE AIRCRAFT, RESPECTIVELY, WITH RESPECT TO A GIVEN AREA OF TERRAIN, AND AUTOMATICALLY MOVING A MODEL ELEMENT REPRESENTING THE AIRCRAFT IN A PATH OVER A THE MAP OF SAID TERRAIN, ABOUT ITS LONGITUDINAL, VERTICAL AND LATERAL AXES AND UP AND DOWN IN SYNCHRONISM WITH THE AIRCRAFT AND IN RESPONSE TO THE RESPECTIVE SIGNALS FROM SAID AIRCRAFT.
Claim 2
Independent Claim
105 words
A METHOD OF PROVIDING A VISUAL REPRODUCTION OF AN AIRCRAFT''S PATH OF TRAVEL, ATTITUDE AND ALTITUDE WHICH COMPRISES TRANSMITTING FROM THE AIRCRAFT A PLURALITY OF DIFFERENT RADIO SIGNALS IN RESPONSE TO CHANGES IN LOCATION, TO CHANGES IN BANK, TURN AND CLIMB ATTITUDES AND TO CHANGES IN THE ALTITUDE OF THE AIRCRAFT, RESPECTIVELY, WITH RESPECT TO A GIVEN AREA OF TERRAIN, AND AUTOMATICALLY MOVING A MODEL ELEMENT REPRESENTING THE AIRCRAFT IN A PATH OVER A THE MAP OF SAID TERRAIN, ABOUT ITS LONGITUDINAL, VERTICAL AND LATERAL AXES AND UP AND DOWN IN SYNCHRONISM WITH THE AIRCRAFT AND IN RESPONSE TO THE RESPECTIVE SIGNALS FROM SAID AIRCRAFT.
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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |