Patent US2638897A successfully refreshed from Google Patents.
US3133610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed governing system
Assignee: Individual
•
Filing: 1960-12-09
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Granted: 1964-05-19
•
Expires: 1980-12-09
Abstract
No abstract record available.
Inventors
- 👤 William L Sheppard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:22
CPC Classifications
F; F02; F02D; F02D9/00; F02D2700/00; F02D2700/02; F02D2700/0217; F02D2700/0225; F02D2700/0228; F02D2700/023; F02D2700/0233
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN A VEHICLE, THE COMBINATION OF AN INTERNAL COMBUSTION ENGINE HAVING A THROTTLE AND A SOURCE OF AIR WHICH CHANGES IN PRESSURE AS A RESULT OF MOVEMENT OF SAID THROTTLE PRIOR TO THE CHANGE OF OUTPUT TORQUE OF THE ENGINE WHICH RESULTS FROM THE MOVEMENT OF SAID THROTTLE, AND ROAD SPEED STABILIZING MEANS COMPRISING CONTROL MEANS RESPONSIVE TO SAID CHANGES IN PRESSURE IN EITHER DIRECTION AND EFFECTIVE INDEPENDENTLY OF ANY CHANGE OF ROAD SPEED AND INDEPENDENTLY OF ANY CHANGE OF ROAD LOAD OF SAID VEHICLE, AND MEANS CONTROLLED BY SAID CONTROL MEANS FOR MOVING SAID THROTTLE TO CHANGE SAID PRESSURE IN THE OPPOSITE DIRECTION.
Claim 2
Dependent Claim
104 words
IN A VEHICLE, THE COMBINATION OF AN INTERNAL COMBUSTION ENGINE HAVING A THROTTLE AND A SOURCE OF AIR WHICH CHANGES IN PRESSURE AS A RESULT OF MOVEMENT OF SAID THROTTLE PRIOR TO THE CHANGE OF OUTPUT TORQUE OF THE ENGINE WHICH RESULTS FROM THE MOVEMENT OF SAID THROTTLE, AND ROAD SPEED STABILIZING MEANS COMPRISING CONTROL MEANS RESPONSIVE TO SAID CHANGES IN PRESSURE IN EITHER DIRECTION AND EFFECTIVE INDEPENDENTLY OF ANY CHANGE OF ROAD SPEED AND INDEPENDENTLY OF ANY CHANGE OF ROAD LOAD OF SAID VEHICLE, AND MEANS CONTROLLED BY SAID CONTROL MEANS FOR MOVING SAID THROTTLE TO CHANGE SAID PRESSURE IN THE OPPOSITE DIRECTION.
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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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |