Patent US3358505A successfully refreshed from Google Patents.
US3358505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Altitude rate indicating system
Assignee: Intercontinental Dynamics Corp
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Filing: 1965-05-18
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Granted: 1967-12-19
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Expires: 1985-05-18
Abstract
No abstract record available.
Inventors
- 👤 Jr John H Andresen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:36
CPC Classifications
G; G01; G01P; G01P3/00; G01P3/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN AN ALTITUDE RATE INDICATING SYSTEM, AN ALTITUDE SENSOR SIGNAL GENERATOR ELEMENT INCLUDING ANEROID MEANS RESPONSIVE TO CHANGES IN ATMOSPHERIC PRESSURE, SIGNAL GENERATING MEANS RESPONSIVE TO CHANGES IN SAID ANEROID MEANS, MOTOR MEANS CONNECTED TO SAID SIGNAL GENERATING MEANS TO DRIVE THE SAME TO NULL THEREBY CAUSING THE MOTOR MEANS TO TURN PROPORTIONALLY WITH ALTITUDE, A RATE GENERATOR MEANS DRIVEN BY SAID MOTOR MEANS, A SUMMING NETWORK SUMMING THE OUTPUT OF SAID ALTITUDE SENSOR SIGNAL GENERATOR ELEMENT AND SAID RATE GENERATOR, AN AMPLIFIER RECEIVING THE OUTPUT OF SAID SUMMING NETWORK, THE OUTPUT OF SAID AMPLIFIER DRIVING SAID MOTOR MEANS, AND AN ELECTRICAL METER DIRECTLY RECEIVING AND DISPLAYING THE OUTPUT OF SAID ALTITUDE SENSOR SIGNAL GENERATOR ELEMENT.
Claim 2
Dependent Claim
116 words
IN AN ALTITUDE RATE INDICATING SYSTEM, AN ALTITUDE SENSOR SIGNAL GENERATOR ELEMENT INCLUDING ANEROID MEANS RESPONSIVE TO CHANGES IN ATMOSPHERIC PRESSURE, SIGNAL GENERATING MEANS RESPONSIVE TO CHANGES IN SAID ANEROID MEANS, MOTOR MEANS CONNECTED TO SAID SIGNAL GENERATING MEANS TO DRIVE THE SAME TO NULL THEREBY CAUSING THE MOTOR MEANS TO TURN PROPORTIONALLY WITH ALTITUDE, A RATE GENERATOR MEANS DRIVEN BY SAID MOTOR MEANS, A SUMMING NETWORK SUMMING THE OUTPUT OF SAID ALTITUDE SENSOR SIGNAL GENERATOR ELEMENT AND SAID RATE GENERATOR, AN AMPLIFIER RECEIVING THE OUTPUT OF SAID SUMMING NETWORK, THE OUTPUT OF SAID AMPLIFIER DRIVING SAID MOTOR MEANS, AND AN ELECTRICAL METER DIRECTLY RECEIVING AND DISPLAYING THE OUTPUT OF SAID ALTITUDE SENSOR SIGNAL GENERATOR ELEMENT.
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) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |