Patent US3794846A successfully refreshed from Google Patents.
Patent US3346078A successfully refreshed from Google Patents.
US3346078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle brake system and method
Assignee: Motors Liquidation Co
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Filing: 1966-02-14
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Granted: 1967-10-10
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Expires: 1986-02-14
Abstract
No abstract record available.
Inventors
- 👤 John A Dobb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:59
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/24; B60T8/00; B60T8/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
A VEHICLE BRAKE SYSTEM FOR A VEHICLE, SAID SYSTEM COMPRISING IN COMBINATION: A FRONT WHEEL BRAKE ASSEMBLY AND A REAR WHEEL BRAKE ASSEMBLY, A BRAKE MASTER CYLINDER HAVING A FIRST FLUID PRESSURIZING CHAMBER AND A SECOND FLUID PRESSURIZING CHAMBER, A FIRST WHEEL CYLINDER FOR ACTUATING ONE OF SAID WHEEL BRAKE ASSEMBLIES, A SECOND WHEEL CYLINDER FOR ACTUATING THE OTHER OF SAID WHEEL BRAKE ASSEMBLIES, A THIRD WHEEL CYLINDER AND PRESSURIZING CHAMBER ASSEMBLY IN SAID OTHER WHEEL BRAKE ASSEMBLY, FIRST NORMALLY OPEN FLUID PRESSURE CLOSED VALVE MEANS HAVING A FLUID PRESSURE VALVE CLOSING CHAMBER AND A VALVE INLET AND A VALVE OUTLET, SECOND NORMALLY CLOSED FLUID PRESSURE DIFFERENTIAL OPENED VALVE MEANS HAVING A VALVE INLET AND A VALVE OUTLET, A FIRST FLUID PRESSURIZING CIRCUIT COMPRISING SAID FIRST FLUID PRESSURIZING CHAMBER AND SAID SECOND WHEEL CYLINDER AND SAID FLUID PRESSURE VALVE CLOSING CHAMBER AND FLUID CONDUIT MEANS FLUID CONNECTING THE SAME, A SECOND FLUID PRESSURIZING CIRCUIT COMPRISING SAID SECOND FLUID PRESSURIZING CHAMBER AND SAID FIRST VALVE MEANS VALVE INLET AND SAID SECOND VALVE MEANS VALVE INLET AND FLUID CONDUIT MEANS CONNECTING THE SAME,
Claim 2
Dependent Claim
181 words
A VEHICLE BRAKE SYSTEM FOR A VEHICLE, SAID SYSTEM COMPRISING IN COMBINATION: A FRONT WHEEL BRAKE ASSEMBLY AND A REAR WHEEL BRAKE ASSEMBLY, A BRAKE MASTER CYLINDER HAVING A FIRST FLUID PRESSURIZING CHAMBER AND A SECOND FLUID PRESSURIZING CHAMBER, A FIRST WHEEL CYLINDER FOR ACTUATING ONE OF SAID WHEEL BRAKE ASSEMBLIES, A SECOND WHEEL CYLINDER FOR ACTUATING THE OTHER OF SAID WHEEL BRAKE ASSEMBLIES, A THIRD WHEEL CYLINDER AND PRESSURIZING CHAMBER ASSEMBLY IN SAID OTHER WHEEL BRAKE ASSEMBLY, FIRST NORMALLY OPEN FLUID PRESSURE CLOSED VALVE MEANS HAVING A FLUID PRESSURE VALVE CLOSING CHAMBER AND A VALVE INLET AND A VALVE OUTLET, SECOND NORMALLY CLOSED FLUID PRESSURE DIFFERENTIAL OPENED VALVE MEANS HAVING A VALVE INLET AND A VALVE OUTLET, A FIRST FLUID PRESSURIZING CIRCUIT COMPRISING SAID FIRST FLUID PRESSURIZING CHAMBER AND SAID SECOND WHEEL CYLINDER AND SAID FLUID PRESSURE VALVE CLOSING CHAMBER AND FLUID CONDUIT MEANS FLUID CONNECTING THE SAME, A SECOND FLUID PRESSURIZING CIRCUIT COMPRISING SAID SECOND FLUID PRESSURIZING CHAMBER AND SAID FIRST VALVE MEANS VALVE INLET AND SAID SECOND VALVE MEANS VALVE INLET AND FLUID CONDUIT MEANS CONNECTING THE SAME,
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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |