US3290958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-braking hydraulic transmissions for motor vehicles
Assignee: Automobiles Citroen SA
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Filing: 1964-07-10
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Granted: 1966-12-13
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Expires: 1984-07-10
Abstract
No abstract record available.
Inventors
- 👤 Henry-Biabaud Edmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:54
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/4157; B; B60; B60K; B60K17/00; B60K17/04; B60K17/10; F16D; F16D57/00; F16D57/06; F16H59/00; F16H59/14; F16H2059/144
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A HYDRAULIC TRANSMISSION SYSTEM FOR MOTOR VEHICLES, COMPRISING A FIRST NORMALLY GENERATING ELEMENT CONNECETED TO THE VEHICLE ENGINE AND A SECOND NORMALLY DRIVING ELEMENT MECHANICALLY CONNECTED TO THE VEHICLE WHEELS AND HYDRAULICALLY CONNECTED TO SAID FIRST ELEMENT THROUGH AN OIL DELIVERY DUCT AND AN OIL RETURN DUCT, UTILISABLE AS A BRAKE BY INSERTION INTO THE OIL RETURN CIRCUIT OF A HYDRAULIC IMPEDER WHICH IS PROGRESSIVELY ADJUSTABLE BY THE BRAKE PEDAL, CHARACTERIZED IN THAT SAID HYDRAULIC IMPEDER IS INSERTED INTO AN AUXILIARY CIRCUIT CONNECTED BETWEEN TWO POINTS LOCATED ALONG SAID OIL RETURN DUCT AND BETWEEN
Claim 2
Dependent Claim
94 words
A HYDRAULIC TRANSMISSION SYSTEM FOR MOTOR VEHICLES, COMPRISING A FIRST NORMALLY GENERATING ELEMENT CONNECETED TO THE VEHICLE ENGINE AND A SECOND NORMALLY DRIVING ELEMENT MECHANICALLY CONNECTED TO THE VEHICLE WHEELS AND HYDRAULICALLY CONNECTED TO SAID FIRST ELEMENT THROUGH AN OIL DELIVERY DUCT AND AN OIL RETURN DUCT, UTILISABLE AS A BRAKE BY INSERTION INTO THE OIL RETURN CIRCUIT OF A HYDRAULIC IMPEDER WHICH IS PROGRESSIVELY ADJUSTABLE BY THE BRAKE PEDAL, CHARACTERIZED IN THAT SAID HYDRAULIC IMPEDER IS INSERTED INTO AN AUXILIARY CIRCUIT CONNECTED BETWEEN TWO POINTS LOCATED ALONG SAID OIL RETURN DUCT AND BETWEEN
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |