Patent US3100553A successfully refreshed from Google Patents.
US3100553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disc brakes for vehicles
Assignee: Dunlop Rubber Co Ltd
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Filing: 1961-03-02
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Granted: 1963-08-13
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Expires: 1981-03-02
Abstract
No abstract record available.
Inventors
- 👤 Butler Henry James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:40
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/228; F16D2121/00; F16D2121/02; F16D2127/00; F16D2127/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
96 words
A DISC BRAKE COMPRISING A ROTATABLE DISC, HOUSINGS, ONE ON EACH SIDE OF SAID DISC, FRICTION PADS, ONE BETWEEN EACH SAID HOUSING AND THE ADJACENT SIDE OF SAID DISC, FLUID OPERATED MEANS IN EACH SAID HOUSING TO MOVE SAID FRICTION PADS INTO FRICTIONAL ENGAGEMENT WITH SAID DISC, MEANS ON EACH SIDE OF SAID DISC TO SUPPORT SAID HOUSINGS SLIDABLY TO MOVE UNDER THE FRICTIONAL DRAG OF SAID ROTATING DISC CHORDWISE OF SAID DISC, AND MEANS ACTUATED BY SAID SLIDING HOUSINGS TO PRESSURIZE A BRAKE FLUID WHEN SAID HOUSINGS ARE DISPLACED BY SAID DRAG OF SAID DISC.
References Cited (Backward Citations)
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Cited
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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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |