US3447641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arcuate disc brake
Assignee: Dunlop Rubber Co Ltd
•
Filing: 1966-04-21
•
Granted: 1969-06-03
•
Expires: 1986-04-21
Abstract
No abstract record available.
Inventors
- 👤 Frederick Sidney Dowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:49
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D65/00; F16D65/38; F16D65/40; F16D65/42; F16D65/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA614125A
Cited
US1867348A
Cited
US2451326A
Cited
US2804176A
Cited
US3190398A
Cited
US2953221A
Cited
US3186517A
Cited
US3189129A
Cited
US3292740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |