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Patent US3188019A successfully refreshed from Google Patents.
US3188019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Simplified inertial guidance system
Assignee: North American Aviation Corp
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Filing: 1960-12-16
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Granted: 1965-06-08
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Expires: 1980-12-16
Abstract
No abstract record available.
Inventors
- 👤 Charles U Boutin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:26
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
96 words
IN COMBINATION WITH A VEHICLE ADAPTED TO BE CONTROLLED ALONG A CURVED PATH, LONGITUDINAL GUIDANCE APPARATUS COMPRISING: MEANS FOR GENERATING A PREDICTED SIGNAL REPRESENTATIVE OF VEHICLE CENTRIPETAL ACCELERATION, SAID MEANS INCLUDING A PROGRAMMER PROVIDING A PROGRAMMED PITCH RATE SIGNAL, ACCELERATION SENSITIVE MEANS FOR PROVIDING A VEHICLE VELOCITY SIGNAL, AND A MULTIPLIER RESPONSIVE TO SAID PITCH RATE AND VELOCITY SIGNALS: AN ACCELERATION SENSITIVE DEVICE PROVIDING A MEASURED SIGNAL REPRESENTATIVE OF ACTUAL VEHICLE ACCELERATION RADIALLY OF SAID PATH; AND MEANS FOR DERIVING A VEHICLE CONTROL SIGNAL COMPONENT IN ACCCORDANCE WITH THE DIFFERENCE BETWEEN SAID PREDICTED AND MEASURED SIGNALS.
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) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |