Patent US3179399A successfully refreshed from Google Patents.
Patent US3132711A successfully refreshed from Google Patents.
US3132711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle speed control
Assignee: Motors Liquidation Co
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Filing: 1963-05-20
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Granted: 1964-05-12
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Expires: 1983-05-20
Abstract
No abstract record available.
Inventors
- 👤 Eugene C Mcmurray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:23
CPC Classifications
B; B60; B60K; B60K31/00; B60K31/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
123 words
A VEHICLE ROAD SPEED CONTROL SYSTEM FOR A VEHICLE HAVING AN ENGINE THROTTLE CONTROL, SAID SYSTEM COMPRISING, A SOURCE OF FIRST PRESSURE DIFFERENT FROM ATMOSPHERIC PRESSURE, A PRESSURE REGULATOR RECEIVING SAID FIRST PRESSURE AND ATMOSPHERIC PRESSURE AND GENERATING A SECOND INTERMEDIATE REGULATED PRESSURE, VALVE MEANS SENSITIVE TO ACTUAL VEHICLE SPEED RECEIVING SAID SECOND PRESSURE AND OPERABLE AT A DESIRED SPEED TO MODIFY SAID SECOND PRESSURE BY SPEED CONTROLLED ADMISSION OF ATMOSPHERIC PRESSURE TO ESTABLISH A THIRD PRESSURE CONSTITUTING A VEHICLE SPEED SIGNAL, SIGNAL AMPLIFYING MEANS RESPONSIVE TO SAID THIRD PRESSURE AND ATMOSPHERIC PRESSURE AND HAVING SAID FIRST PRESSURE INPUT AND ATMOSPHERIC PRESSURE INPUT TO PRODUCE A FOURTH PRESSURE CONSTITUTING A CONTROL PRESSURE OUTPUT INVERSELY PROPORTIONAL TO SAID THIRD PRESSURE, AND SERVO MEANS HAVING
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) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |