Patent US5119339A successfully refreshed from Google Patents.
US3269409A
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US
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Check valve for use with a master cylinder
Assignee: Whitnash PLC
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Filing: 1963-11-21
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Granted: 1966-08-30
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Expires: 1983-11-21
Abstract
No abstract record available.
Inventors
- 👤 Ansell Ronald William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:37
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/28; B60T11/16; B60T11/22; F; F15; F15B; F15B7/00; F15B7/06; F16; F16K; F16K15/00; F16K15/14; F16K15/16; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/7772; Y10T137/7837; Y10T137/7847; Y10T137/7849; Y10T137/7879; Y10T137/7888; Y10T137/7891
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A VALVE FOR USE WITH A MASTER CYLINDER AND THE LIKE COMPRISING A CYLINDRICAL MEMBER WITH A BOSS FORMING A CENTRAL RECESS ADJACENT ONE END THEREOF, A RADIALLY EXTENDING LIQUID PASSAGE DISPOSED IN THE PERIPHERAL WALL OF SAID CYLINDRICAL MEMBER IN COMMUNICATION WITH THE OUTER PERIPHERY OF SAID MEMBER AND THE INTERIOR OF SAID RECESS, SAID BOSS HAVING A SEMI-CIRCULAR SLOT DISPOSED THEREIN FORMING A PERIPHERAL WALL, A SEMI-CIRCULAR RESILIENT VALVE
Claim 2
Dependent Claim
71 words
A VALVE FOR USE WITH A MASTER CYLINDER AND THE LIKE COMPRISING A CYLINDRICAL MEMBER WITH A BOSS FORMING A CENTRAL RECESS ADJACENT ONE END THEREOF, A RADIALLY EXTENDING LIQUID PASSAGE DISPOSED IN THE PERIPHERAL WALL OF SAID CYLINDRICAL MEMBER IN COMMUNICATION WITH THE OUTER PERIPHERY OF SAID MEMBER AND THE INTERIOR OF SAID RECESS, SAID BOSS HAVING A SEMI-CIRCULAR SLOT DISPOSED THEREIN FORMING A PERIPHERAL WALL, A SEMI-CIRCULAR RESILIENT VALVE
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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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |