Patent US3405779A successfully refreshed from Google Patents.
US3405779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle speed control system
Assignee: Motors Liquidation Co
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Filing: 1966-12-09
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Granted: 1968-10-15
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Expires: 1986-12-09
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:08
CPC Classifications
B; B60; B60K; B60K31/00; B60K31/06; B60K31/10; B60K31/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A VEHICLE SPEED CONTROL ACTUATOR COMPRISING FLUID PRESSURE CONTROL MEANS, FIRST FLUID PRESSURE RESPONSIVE MEANS FOR CONTROLLING THE POSITION OF A VEHICLE RESPONSIVE VARIABLE RESISTOR MEANS, SECOND FLUID PRESSURE RESPONSIVE MEANS FOR ADJUSTING THE RESISTANCE OF SAID RESISTOR MEANS TO A VALUE CORRESPONDING TO A PREVAILING VEHICLE SPEED IN RESPONSE TO OPERATION OF SAID FLUID PRESSURE CONTROL MEANS, MEANS FOR MAINTAINING SAID RESISTOR MEANS AT THE ADJUSTED VALUE INDEPENDENT OF SAID SECOND FLUID PRESSURE RESPONSIVE MEANS.
Claim 2
Dependent Claim
76 words
A VEHICLE SPEED CONTROL ACTUATOR COMPRISING FLUID PRESSURE CONTROL MEANS, FIRST FLUID PRESSURE RESPONSIVE MEANS FOR CONTROLLING THE POSITION OF A VEHICLE RESPONSIVE VARIABLE RESISTOR MEANS, SECOND FLUID PRESSURE RESPONSIVE MEANS FOR ADJUSTING THE RESISTANCE OF SAID RESISTOR MEANS TO A VALUE CORRESPONDING TO A PREVAILING VEHICLE SPEED IN RESPONSE TO OPERATION OF SAID FLUID PRESSURE CONTROL MEANS, MEANS FOR MAINTAINING SAID RESISTOR MEANS AT THE ADJUSTED VALUE INDEPENDENT OF SAID SECOND FLUID PRESSURE RESPONSIVE MEANS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |